20171000

素因数分解:

$2^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{877}}^1$

素因数の和:921

約数の個数: 64

約数和(自身を含む): 49308480

約数和(自身を除く): 29137480

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 125, 184, 200, 230, 250, 460, 500, 575, 877, 920, 1000, 1150, 1754, 2300, 2875, 3508, 4385, 4600, 5750, 7016, 8770, 11500, 17540, 20171, 21925, 23000, 35080, 40342, 43850, 80684, 87700, 100855, 109625, 161368, 175400, 201710, 219250, 403420, 438500, 504275, 806840, 877000, 1008550, 2017100, 2521375, 4034200, 5042750, 10085500, 20171000]

約数ペア:

[(1, 20171000), (2, 10085500), (4, 5042750), (5, 4034200), (8, 2521375), (10, 2017100), (20, 1008550), (23, 877000), (25, 806840), (40, 504275), (46, 438500), (50, 403420), (92, 219250), (100, 201710), (115, 175400), (125, 161368), (184, 109625), (200, 100855), (230, 87700), (250, 80684), (460, 43850), (500, 40342), (575, 35080), (877, 23000), (920, 21925), (1000, 20171), (1150, 17540), (1754, 11500), (2300, 8770), (2875, 7016), (3508, 5750), (4385, 4600)]