31165000

素因数分解:

$2^3\times 5^4\times {\mathrm{23}}^1\times {\mathrm{271}}^1$

素因数の和:320

約数の個数: 80

約数和(自身を含む): 76475520

約数和(自身を除く): 45310520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 125, 184, 200, 230, 250, 271, 460, 500, 542, 575, 625, 920, 1000, 1084, 1150, 1250, 1355, 2168, 2300, 2500, 2710, 2875, 4600, 5000, 5420, 5750, 6233, 6775, 10840, 11500, 12466, 13550, 14375, 23000, 24932, 27100, 28750, 31165, 33875, 49864, 54200, 57500, 62330, 67750, 115000, 124660, 135500, 155825, 169375, 249320, 271000, 311650, 338750, 623300, 677500, 779125, 1246600, 1355000, 1558250, 3116500, 3895625, 6233000, 7791250, 15582500, 31165000]

約数ペア:

[(1, 31165000), (2, 15582500), (4, 7791250), (5, 6233000), (8, 3895625), (10, 3116500), (20, 1558250), (23, 1355000), (25, 1246600), (40, 779125), (46, 677500), (50, 623300), (92, 338750), (100, 311650), (115, 271000), (125, 249320), (184, 169375), (200, 155825), (230, 135500), (250, 124660), (271, 115000), (460, 67750), (500, 62330), (542, 57500), (575, 54200), (625, 49864), (920, 33875), (1000, 31165), (1084, 28750), (1150, 27100), (1250, 24932), (1355, 23000), (2168, 14375), (2300, 13550), (2500, 12466), (2710, 11500), (2875, 10840), (4600, 6775), (5000, 6233), (5420, 5750)]