1994659640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{79279}}^1$

素因数の和:79344

約数の個数: 64

約数和(自身を含む): 4880476800

約数和(自身を除く): 2885817160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 37, 40, 68, 74, 85, 136, 148, 170, 185, 296, 340, 370, 629, 680, 740, 1258, 1480, 2516, 3145, 5032, 6290, 12580, 25160, 79279, 158558, 317116, 396395, 634232, 792790, 1347743, 1585580, 2695486, 2933323, 3171160, 5390972, 5866646, 6738715, 10781944, 11733292, 13477430, 14666615, 23466584, 26954860, 29333230, 49866491, 53909720, 58666460, 99732982, 117332920, 199465964, 249332455, 398931928, 498664910, 997329820, 1994659640]

約数ペア:

[(1, 1994659640), (2, 997329820), (4, 498664910), (5, 398931928), (8, 249332455), (10, 199465964), (17, 117332920), (20, 99732982), (34, 58666460), (37, 53909720), (40, 49866491), (68, 29333230), (74, 26954860), (85, 23466584), (136, 14666615), (148, 13477430), (170, 11733292), (185, 10781944), (296, 6738715), (340, 5866646), (370, 5390972), (629, 3171160), (680, 2933323), (740, 2695486), (1258, 1585580), (1480, 1347743), (2516, 792790), (3145, 634232), (5032, 396395), (6290, 317116), (12580, 158558), (25160, 79279)]