72320720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1297}}^1$

素因数の和:1368

約数の個数: 80

約数和(自身を含む): 182519568

約数和(自身を除く): 110198848

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 41, 68, 80, 82, 85, 136, 164, 170, 205, 272, 328, 340, 410, 656, 680, 697, 820, 1297, 1360, 1394, 1640, 2594, 2788, 3280, 3485, 5188, 5576, 6485, 6970, 10376, 11152, 12970, 13940, 20752, 22049, 25940, 27880, 44098, 51880, 53177, 55760, 88196, 103760, 106354, 110245, 176392, 212708, 220490, 265885, 352784, 425416, 440980, 531770, 850832, 881960, 904009, 1063540, 1763920, 1808018, 2127080, 3616036, 4254160, 4520045, 7232072, 9040090, 14464144, 18080180, 36160360, 72320720]

約数ペア:

[(1, 72320720), (2, 36160360), (4, 18080180), (5, 14464144), (8, 9040090), (10, 7232072), (16, 4520045), (17, 4254160), (20, 3616036), (34, 2127080), (40, 1808018), (41, 1763920), (68, 1063540), (80, 904009), (82, 881960), (85, 850832), (136, 531770), (164, 440980), (170, 425416), (205, 352784), (272, 265885), (328, 220490), (340, 212708), (410, 176392), (656, 110245), (680, 106354), (697, 103760), (820, 88196), (1297, 55760), (1360, 53177), (1394, 51880), (1640, 44098), (2594, 27880), (2788, 25940), (3280, 22049), (3485, 20752), (5188, 13940), (5576, 12970), (6485, 11152), (6970, 10376)]