81806700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{389}}^1\times {\mathrm{701}}^1$

素因数の和:1107

約数の個数: 72

約数和(自身を含む): 237641040

約数和(自身を除く): 155834340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300, 389, 701, 778, 1167, 1402, 1556, 1945, 2103, 2334, 2804, 3505, 3890, 4206, 4668, 5835, 7010, 7780, 8412, 9725, 10515, 11670, 14020, 17525, 19450, 21030, 23340, 29175, 35050, 38900, 42060, 52575, 58350, 70100, 105150, 116700, 210300, 272689, 545378, 818067, 1090756, 1363445, 1636134, 2726890, 3272268, 4090335, 5453780, 6817225, 8180670, 13634450, 16361340, 20451675, 27268900, 40903350, 81806700]

約数ペア:

[(1, 81806700), (2, 40903350), (3, 27268900), (4, 20451675), (5, 16361340), (6, 13634450), (10, 8180670), (12, 6817225), (15, 5453780), (20, 4090335), (25, 3272268), (30, 2726890), (50, 1636134), (60, 1363445), (75, 1090756), (100, 818067), (150, 545378), (300, 272689), (389, 210300), (701, 116700), (778, 105150), (1167, 70100), (1402, 58350), (1556, 52575), (1945, 42060), (2103, 38900), (2334, 35050), (2804, 29175), (3505, 23340), (3890, 21030), (4206, 19450), (4668, 17525), (5835, 14020), (7010, 11670), (7780, 10515), (8412, 9725)]