20505400

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:233

約数の個数: 96

約数和(自身を含む): 52161840

約数和(自身を除く): 31656440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 37, 40, 50, 68, 74, 85, 100, 136, 148, 163, 170, 185, 200, 296, 326, 340, 370, 425, 629, 652, 680, 740, 815, 850, 925, 1258, 1304, 1480, 1630, 1700, 1850, 2516, 2771, 3145, 3260, 3400, 3700, 4075, 5032, 5542, 6031, 6290, 6520, 7400, 8150, 11084, 12062, 12580, 13855, 15725, 16300, 22168, 24124, 25160, 27710, 30155, 31450, 32600, 48248, 55420, 60310, 62900, 69275, 102527, 110840, 120620, 125800, 138550, 150775, 205054, 241240, 277100, 301550, 410108, 512635, 554200, 603100, 820216, 1025270, 1206200, 2050540, 2563175, 4101080, 5126350, 10252700, 20505400]

約数ペア:

[(1, 20505400), (2, 10252700), (4, 5126350), (5, 4101080), (8, 2563175), (10, 2050540), (17, 1206200), (20, 1025270), (25, 820216), (34, 603100), (37, 554200), (40, 512635), (50, 410108), (68, 301550), (74, 277100), (85, 241240), (100, 205054), (136, 150775), (148, 138550), (163, 125800), (170, 120620), (185, 110840), (200, 102527), (296, 69275), (326, 62900), (340, 60310), (370, 55420), (425, 48248), (629, 32600), (652, 31450), (680, 30155), (740, 27710), (815, 25160), (850, 24124), (925, 22168), (1258, 16300), (1304, 15725), (1480, 13855), (1630, 12580), (1700, 12062), (1850, 11084), (2516, 8150), (2771, 7400), (3145, 6520), (3260, 6290), (3400, 6031), (3700, 5542), (4075, 5032)]