56645840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{449}}^1$

素因数の和:564

約数の個数: 80

約数和(自身を含む): 140616000

約数和(自身を除く): 83970160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 83, 95, 152, 166, 190, 304, 332, 380, 415, 449, 664, 760, 830, 898, 1328, 1520, 1577, 1660, 1796, 2245, 3154, 3320, 3592, 4490, 6308, 6640, 7184, 7885, 8531, 8980, 12616, 15770, 17062, 17960, 25232, 31540, 34124, 35920, 37267, 42655, 63080, 68248, 74534, 85310, 126160, 136496, 149068, 170620, 186335, 298136, 341240, 372670, 596272, 682480, 708073, 745340, 1416146, 1490680, 2832292, 2981360, 3540365, 5664584, 7080730, 11329168, 14161460, 28322920, 56645840]

約数ペア:

[(1, 56645840), (2, 28322920), (4, 14161460), (5, 11329168), (8, 7080730), (10, 5664584), (16, 3540365), (19, 2981360), (20, 2832292), (38, 1490680), (40, 1416146), (76, 745340), (80, 708073), (83, 682480), (95, 596272), (152, 372670), (166, 341240), (190, 298136), (304, 186335), (332, 170620), (380, 149068), (415, 136496), (449, 126160), (664, 85310), (760, 74534), (830, 68248), (898, 63080), (1328, 42655), (1520, 37267), (1577, 35920), (1660, 34124), (1796, 31540), (2245, 25232), (3154, 17960), (3320, 17062), (3592, 15770), (4490, 12616), (6308, 8980), (6640, 8531), (7184, 7885)]