280807000

素因数分解:

$2^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{421}}^1$

素因数の和:494

約数の個数: 128

約数和(自身を含む): 710985600

約数和(自身を除く): 430178600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 29, 40, 46, 50, 58, 92, 100, 115, 116, 125, 145, 184, 200, 230, 232, 250, 290, 421, 460, 500, 575, 580, 667, 725, 842, 920, 1000, 1150, 1160, 1334, 1450, 1684, 2105, 2300, 2668, 2875, 2900, 3335, 3368, 3625, 4210, 4600, 5336, 5750, 5800, 6670, 7250, 8420, 9683, 10525, 11500, 12209, 13340, 14500, 16675, 16840, 19366, 21050, 23000, 24418, 26680, 29000, 33350, 38732, 42100, 48415, 48836, 52625, 61045, 66700, 77464, 83375, 84200, 96830, 97672, 105250, 122090, 133400, 166750, 193660, 210500, 242075, 244180, 280807, 305225, 333500, 387320, 421000, 484150, 488360, 561614, 610450, 667000, 968300, 1123228, 1210375, 1220900, 1404035, 1526125, 1936600, 2246456, 2420750, 2441800, 2808070, 3052250, 4841500, 5616140, 6104500, 7020175, 9683000, 11232280, 12209000, 14040350, 28080700, 35100875, 56161400, 70201750, 140403500, 280807000]

約数ペア:

[(1, 280807000), (2, 140403500), (4, 70201750), (5, 56161400), (8, 35100875), (10, 28080700), (20, 14040350), (23, 12209000), (25, 11232280), (29, 9683000), (40, 7020175), (46, 6104500), (50, 5616140), (58, 4841500), (92, 3052250), (100, 2808070), (115, 2441800), (116, 2420750), (125, 2246456), (145, 1936600), (184, 1526125), (200, 1404035), (230, 1220900), (232, 1210375), (250, 1123228), (290, 968300), (421, 667000), (460, 610450), (500, 561614), (575, 488360), (580, 484150), (667, 421000), (725, 387320), (842, 333500), (920, 305225), (1000, 280807), (1150, 244180), (1160, 242075), (1334, 210500), (1450, 193660), (1684, 166750), (2105, 133400), (2300, 122090), (2668, 105250), (2875, 97672), (2900, 96830), (3335, 84200), (3368, 83375), (3625, 77464), (4210, 66700), (4600, 61045), (5336, 52625), (5750, 48836), (5800, 48415), (6670, 42100), (7250, 38732), (8420, 33350), (9683, 29000), (10525, 26680), (11500, 24418), (12209, 23000), (13340, 21050), (14500, 19366), (16675, 16840)]