31393440

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1$

素因数の和:93

約数の個数: 288

約数和(自身を含む): 121746240

約数和(自身を除く): 90352800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 43, 45, 48, 52, 54, 60, 65, 72, 78, 80, 86, 90, 96, 104, 108, 117, 120, 129, 130, 135, 144, 156, 160, 169, 172, 180, 195, 208, 215, 216, 234, 240, 258, 260, 270, 288, 312, 338, 344, 351, 360, 387, 390, 416, 430, 432, 468, 480, 507, 516, 520, 540, 559, 585, 624, 645, 676, 688, 702, 720, 774, 780, 845, 860, 864, 936, 1014, 1032, 1040, 1080, 1118, 1161, 1170, 1248, 1290, 1352, 1376, 1404, 1440, 1521, 1548, 1560, 1677, 1690, 1720, 1755, 1872, 1935, 2028, 2064, 2080, 2160, 2236, 2322, 2340, 2535, 2580, 2704, 2795, 2808, 3042, 3096, 3120, 3354, 3380, 3440, 3510, 3744, 3870, 4056, 4128, 4320, 4472, 4563, 4644, 4680, 5031, 5070, 5160, 5408, 5590, 5616, 5805, 6084, 6192, 6240, 6708, 6760, 6880, 7020, 7267, 7605, 7740, 8112, 8385, 8944, 9126, 9288, 9360, 10062, 10140, 10320, 11180, 11232, 11610, 12168, 12384, 13416, 13520, 14040, 14534, 15093, 15210, 15480, 16224, 16770, 17888, 18252, 18576, 18720, 20124, 20280, 20640, 21801, 22360, 22815, 23220, 24336, 25155, 26832, 27040, 28080, 29068, 30186, 30420, 30960, 33540, 36335, 36504, 37152, 40248, 40560, 43602, 44720, 45630, 46440, 48672, 50310, 53664, 56160, 58136, 60372, 60840, 61920, 65403, 67080, 72670, 73008, 75465, 80496, 81120, 87204, 89440, 91260, 92880, 100620, 109005, 116272, 120744, 121680, 130806, 134160, 145340, 146016, 150930, 160992, 174408, 182520, 185760, 196209, 201240, 218010, 232544, 241488, 243360, 261612, 268320, 290680, 301860, 327015, 348816, 365040, 392418, 402480, 436020, 482976, 523224, 581360, 603720, 654030, 697632, 730080, 784836, 804960, 872040, 981045, 1046448, 1162720, 1207440, 1308060, 1569672, 1744080, 1962090, 2092896, 2414880, 2616120, 3139344, 3488160, 3924180, 5232240, 6278688, 7848360, 10464480, 15696720, 31393440]

約数ペア:

[(1, 31393440), (2, 15696720), (3, 10464480), (4, 7848360), (5, 6278688), (6, 5232240), (8, 3924180), (9, 3488160), (10, 3139344), (12, 2616120), (13, 2414880), (15, 2092896), (16, 1962090), (18, 1744080), (20, 1569672), (24, 1308060), (26, 1207440), (27, 1162720), (30, 1046448), (32, 981045), (36, 872040), (39, 804960), (40, 784836), (43, 730080), (45, 697632), (48, 654030), (52, 603720), (54, 581360), (60, 523224), (65, 482976), (72, 436020), (78, 402480), (80, 392418), (86, 365040), (90, 348816), (96, 327015), (104, 301860), (108, 290680), (117, 268320), (120, 261612), (129, 243360), (130, 241488), (135, 232544), (144, 218010), (156, 201240), (160, 196209), (169, 185760), (172, 182520), (180, 174408), (195, 160992), (208, 150930), (215, 146016), (216, 145340), (234, 134160), (240, 130806), (258, 121680), (260, 120744), (270, 116272), (288, 109005), (312, 100620), (338, 92880), (344, 91260), (351, 89440), (360, 87204), (387, 81120), (390, 80496), (416, 75465), (430, 73008), (432, 72670), (468, 67080), (480, 65403), (507, 61920), (516, 60840), (520, 60372), (540, 58136), (559, 56160), (585, 53664), (624, 50310), (645, 48672), (676, 46440), (688, 45630), (702, 44720), (720, 43602), (774, 40560), (780, 40248), (845, 37152), (860, 36504), (864, 36335), (936, 33540), (1014, 30960), (1032, 30420), (1040, 30186), (1080, 29068), (1118, 28080), (1161, 27040), (1170, 26832), (1248, 25155), (1290, 24336), (1352, 23220), (1376, 22815), (1404, 22360), (1440, 21801), (1521, 20640), (1548, 20280), (1560, 20124), (1677, 18720), (1690, 18576), (1720, 18252), (1755, 17888), (1872, 16770), (1935, 16224), (2028, 15480), (2064, 15210), (2080, 15093), (2160, 14534), (2236, 14040), (2322, 13520), (2340, 13416), (2535, 12384), (2580, 12168), (2704, 11610), (2795, 11232), (2808, 11180), (3042, 10320), (3096, 10140), (3120, 10062), (3354, 9360), (3380, 9288), (3440, 9126), (3510, 8944), (3744, 8385), (3870, 8112), (4056, 7740), (4128, 7605), (4320, 7267), (4472, 7020), (4563, 6880), (4644, 6760), (4680, 6708), (5031, 6240), (5070, 6192), (5160, 6084), (5408, 5805), (5590, 5616)]