20075603960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{440641}}^1$

素因数の和:440736

約数の個数: 64

約数和(自身を含む): 48541122720

約数和(自身を除く): 28465518760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 67, 68, 85, 134, 136, 170, 268, 335, 340, 536, 670, 680, 1139, 1340, 2278, 2680, 4556, 5695, 9112, 11390, 22780, 45560, 440641, 881282, 1762564, 2203205, 3525128, 4406410, 7490897, 8812820, 14981794, 17625640, 29522947, 29963588, 37454485, 59045894, 59927176, 74908970, 118091788, 147614735, 149817940, 236183576, 295229470, 299635880, 501890099, 590458940, 1003780198, 1180917880, 2007560396, 2509450495, 4015120792, 5018900990, 10037801980, 20075603960]

約数ペア:

[(1, 20075603960), (2, 10037801980), (4, 5018900990), (5, 4015120792), (8, 2509450495), (10, 2007560396), (17, 1180917880), (20, 1003780198), (34, 590458940), (40, 501890099), (67, 299635880), (68, 295229470), (85, 236183576), (134, 149817940), (136, 147614735), (170, 118091788), (268, 74908970), (335, 59927176), (340, 59045894), (536, 37454485), (670, 29963588), (680, 29522947), (1139, 17625640), (1340, 14981794), (2278, 8812820), (2680, 7490897), (4556, 4406410), (5695, 3525128), (9112, 2203205), (11390, 1762564), (22780, 881282), (45560, 440641)]