818778200

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{3221}}^1$

素因数の和:3309

約数の個数: 96

約数和(自身を含む): 2013621120

約数和(自身を除く): 1194842920

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 41, 50, 62, 82, 100, 124, 155, 164, 200, 205, 248, 310, 328, 410, 620, 775, 820, 1025, 1240, 1271, 1550, 1640, 2050, 2542, 3100, 3221, 4100, 5084, 6200, 6355, 6442, 8200, 10168, 12710, 12884, 16105, 25420, 25768, 31775, 32210, 50840, 63550, 64420, 80525, 99851, 127100, 128840, 132061, 161050, 199702, 254200, 264122, 322100, 399404, 499255, 528244, 644200, 660305, 798808, 998510, 1056488, 1320610, 1997020, 2496275, 2641220, 3301525, 3994040, 4093891, 4992550, 5282440, 6603050, 8187782, 9985100, 13206100, 16375564, 19970200, 20469455, 26412200, 32751128, 40938910, 81877820, 102347275, 163755640, 204694550, 409389100, 818778200]

約数ペア:

[(1, 818778200), (2, 409389100), (4, 204694550), (5, 163755640), (8, 102347275), (10, 81877820), (20, 40938910), (25, 32751128), (31, 26412200), (40, 20469455), (41, 19970200), (50, 16375564), (62, 13206100), (82, 9985100), (100, 8187782), (124, 6603050), (155, 5282440), (164, 4992550), (200, 4093891), (205, 3994040), (248, 3301525), (310, 2641220), (328, 2496275), (410, 1997020), (620, 1320610), (775, 1056488), (820, 998510), (1025, 798808), (1240, 660305), (1271, 644200), (1550, 528244), (1640, 499255), (2050, 399404), (2542, 322100), (3100, 264122), (3221, 254200), (4100, 199702), (5084, 161050), (6200, 132061), (6355, 128840), (6442, 127100), (8200, 99851), (10168, 80525), (12710, 64420), (12884, 63550), (16105, 50840), (25420, 32210), (25768, 31775)]