865740100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{1447}}^1$

素因数の和:1685

約数の個数: 72

約数和(自身を含む): 1950652928

約数和(自身を除く): 1084912828

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 193, 310, 386, 620, 772, 775, 965, 1447, 1550, 1930, 2894, 3100, 3860, 4825, 5788, 5983, 7235, 9650, 11966, 14470, 19300, 23932, 28940, 29915, 36175, 44857, 59830, 72350, 89714, 119660, 144700, 149575, 179428, 224285, 279271, 299150, 448570, 558542, 598300, 897140, 1117084, 1121425, 1396355, 2242850, 2792710, 4485700, 5585420, 6981775, 8657401, 13963550, 17314802, 27927100, 34629604, 43287005, 86574010, 173148020, 216435025, 432870050, 865740100]

約数ペア:

[(1, 865740100), (2, 432870050), (4, 216435025), (5, 173148020), (10, 86574010), (20, 43287005), (25, 34629604), (31, 27927100), (50, 17314802), (62, 13963550), (100, 8657401), (124, 6981775), (155, 5585420), (193, 4485700), (310, 2792710), (386, 2242850), (620, 1396355), (772, 1121425), (775, 1117084), (965, 897140), (1447, 598300), (1550, 558542), (1930, 448570), (2894, 299150), (3100, 279271), (3860, 224285), (4825, 179428), (5788, 149575), (5983, 144700), (7235, 119660), (9650, 89714), (11966, 72350), (14470, 59830), (19300, 44857), (23932, 36175), (28940, 29915)]