1644240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:77

約数の個数: 160

約数和(自身を含む): 5999616

約数和(自身を除く): 4355376

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 17, 20, 24, 26, 30, 31, 34, 39, 40, 48, 51, 52, 60, 62, 65, 68, 78, 80, 85, 93, 102, 104, 120, 124, 130, 136, 155, 156, 170, 186, 195, 204, 208, 221, 240, 248, 255, 260, 272, 310, 312, 340, 372, 390, 403, 408, 442, 465, 496, 510, 520, 527, 620, 624, 663, 680, 744, 780, 806, 816, 884, 930, 1020, 1040, 1054, 1105, 1209, 1240, 1326, 1360, 1488, 1560, 1581, 1612, 1768, 1860, 2015, 2040, 2108, 2210, 2418, 2480, 2635, 2652, 3120, 3162, 3224, 3315, 3536, 3720, 4030, 4080, 4216, 4420, 4836, 5270, 5304, 6045, 6324, 6448, 6630, 6851, 7440, 7905, 8060, 8432, 8840, 9672, 10540, 10608, 12090, 12648, 13260, 13702, 15810, 16120, 17680, 19344, 20553, 21080, 24180, 25296, 26520, 27404, 31620, 32240, 34255, 41106, 42160, 48360, 53040, 54808, 63240, 68510, 82212, 96720, 102765, 109616, 126480, 137020, 164424, 205530, 274040, 328848, 411060, 548080, 822120, 1644240]

約数ペア:

[(1, 1644240), (2, 822120), (3, 548080), (4, 411060), (5, 328848), (6, 274040), (8, 205530), (10, 164424), (12, 137020), (13, 126480), (15, 109616), (16, 102765), (17, 96720), (20, 82212), (24, 68510), (26, 63240), (30, 54808), (31, 53040), (34, 48360), (39, 42160), (40, 41106), (48, 34255), (51, 32240), (52, 31620), (60, 27404), (62, 26520), (65, 25296), (68, 24180), (78, 21080), (80, 20553), (85, 19344), (93, 17680), (102, 16120), (104, 15810), (120, 13702), (124, 13260), (130, 12648), (136, 12090), (155, 10608), (156, 10540), (170, 9672), (186, 8840), (195, 8432), (204, 8060), (208, 7905), (221, 7440), (240, 6851), (248, 6630), (255, 6448), (260, 6324), (272, 6045), (310, 5304), (312, 5270), (340, 4836), (372, 4420), (390, 4216), (403, 4080), (408, 4030), (442, 3720), (465, 3536), (496, 3315), (510, 3224), (520, 3162), (527, 3120), (620, 2652), (624, 2635), (663, 2480), (680, 2418), (744, 2210), (780, 2108), (806, 2040), (816, 2015), (884, 1860), (930, 1768), (1020, 1612), (1040, 1581), (1054, 1560), (1105, 1488), (1209, 1360), (1240, 1326)]