28851700

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:313

約数の個数: 72

約数和(自身を含む): 66495744

約数和(自身を除く): 37644044

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 41, 50, 62, 82, 100, 124, 155, 164, 205, 227, 310, 410, 454, 620, 775, 820, 908, 1025, 1135, 1271, 1550, 2050, 2270, 2542, 3100, 4100, 4540, 5084, 5675, 6355, 7037, 9307, 11350, 12710, 14074, 18614, 22700, 25420, 28148, 31775, 35185, 37228, 46535, 63550, 70370, 93070, 127100, 140740, 175925, 186140, 232675, 288517, 351850, 465350, 577034, 703700, 930700, 1154068, 1442585, 2885170, 5770340, 7212925, 14425850, 28851700]

約数ペア:

[(1, 28851700), (2, 14425850), (4, 7212925), (5, 5770340), (10, 2885170), (20, 1442585), (25, 1154068), (31, 930700), (41, 703700), (50, 577034), (62, 465350), (82, 351850), (100, 288517), (124, 232675), (155, 186140), (164, 175925), (205, 140740), (227, 127100), (310, 93070), (410, 70370), (454, 63550), (620, 46535), (775, 37228), (820, 35185), (908, 31775), (1025, 28148), (1135, 25420), (1271, 22700), (1550, 18614), (2050, 14074), (2270, 12710), (2542, 11350), (3100, 9307), (4100, 7037), (4540, 6355), (5084, 5675)]