1440377840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{311}}^1$

素因数の和:631

約数の個数: 160

約数和(自身を含む): 3871895040

約数和(自身を除く): 2431517200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 277, 304, 311, 380, 418, 440, 554, 622, 760, 836, 880, 1045, 1108, 1244, 1385, 1520, 1555, 1672, 2090, 2216, 2488, 2770, 3047, 3110, 3344, 3421, 4180, 4432, 4976, 5263, 5540, 5909, 6094, 6220, 6842, 8360, 10526, 11080, 11818, 12188, 12440, 13684, 15235, 16720, 17105, 21052, 22160, 23636, 24376, 24880, 26315, 27368, 29545, 30470, 34210, 42104, 47272, 48752, 52630, 54736, 57893, 59090, 60940, 64999, 68420, 84208, 86147, 94544, 105260, 115786, 118180, 121880, 129998, 136840, 172294, 210520, 231572, 236360, 243760, 259996, 273680, 289465, 324995, 344588, 421040, 430735, 463144, 472720, 519992, 578930, 649990, 689176, 861470, 926288, 947617, 1039984, 1157860, 1299980, 1378352, 1636793, 1722940, 1895234, 2315720, 2599960, 3273586, 3445880, 3790468, 4631440, 4738085, 5199920, 6547172, 6891760, 7580936, 8183965, 9476170, 13094344, 15161872, 16367930, 18004723, 18952340, 26188688, 32735860, 36009446, 37904680, 65471720, 72018892, 75809360, 90023615, 130943440, 144037784, 180047230, 288075568, 360094460, 720188920, 1440377840]

約数ペア:

[(1, 1440377840), (2, 720188920), (4, 360094460), (5, 288075568), (8, 180047230), (10, 144037784), (11, 130943440), (16, 90023615), (19, 75809360), (20, 72018892), (22, 65471720), (38, 37904680), (40, 36009446), (44, 32735860), (55, 26188688), (76, 18952340), (80, 18004723), (88, 16367930), (95, 15161872), (110, 13094344), (152, 9476170), (176, 8183965), (190, 7580936), (209, 6891760), (220, 6547172), (277, 5199920), (304, 4738085), (311, 4631440), (380, 3790468), (418, 3445880), (440, 3273586), (554, 2599960), (622, 2315720), (760, 1895234), (836, 1722940), (880, 1636793), (1045, 1378352), (1108, 1299980), (1244, 1157860), (1385, 1039984), (1520, 947617), (1555, 926288), (1672, 861470), (2090, 689176), (2216, 649990), (2488, 578930), (2770, 519992), (3047, 472720), (3110, 463144), (3344, 430735), (3421, 421040), (4180, 344588), (4432, 324995), (4976, 289465), (5263, 273680), (5540, 259996), (5909, 243760), (6094, 236360), (6220, 231572), (6842, 210520), (8360, 172294), (10526, 136840), (11080, 129998), (11818, 121880), (12188, 118180), (12440, 115786), (13684, 105260), (15235, 94544), (16720, 86147), (17105, 84208), (21052, 68420), (22160, 64999), (23636, 60940), (24376, 59090), (24880, 57893), (26315, 54736), (27368, 52630), (29545, 48752), (30470, 47272), (34210, 42104)]