7821920

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:148

約数の個数: 96

約数和(自身を含む): 20321280

約数和(自身を除く): 12499360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 76, 80, 83, 95, 124, 152, 155, 160, 166, 190, 248, 304, 310, 332, 380, 415, 496, 589, 608, 620, 664, 760, 830, 992, 1178, 1240, 1328, 1520, 1577, 1660, 2356, 2480, 2573, 2656, 2945, 3040, 3154, 3320, 4712, 4960, 5146, 5890, 6308, 6640, 7885, 9424, 10292, 11780, 12616, 12865, 13280, 15770, 18848, 20584, 23560, 25232, 25730, 31540, 41168, 47120, 48887, 50464, 51460, 63080, 82336, 94240, 97774, 102920, 126160, 195548, 205840, 244435, 252320, 391096, 411680, 488870, 782192, 977740, 1564384, 1955480, 3910960, 7821920]

約数ペア:

[(1, 7821920), (2, 3910960), (4, 1955480), (5, 1564384), (8, 977740), (10, 782192), (16, 488870), (19, 411680), (20, 391096), (31, 252320), (32, 244435), (38, 205840), (40, 195548), (62, 126160), (76, 102920), (80, 97774), (83, 94240), (95, 82336), (124, 63080), (152, 51460), (155, 50464), (160, 48887), (166, 47120), (190, 41168), (248, 31540), (304, 25730), (310, 25232), (332, 23560), (380, 20584), (415, 18848), (496, 15770), (589, 13280), (608, 12865), (620, 12616), (664, 11780), (760, 10292), (830, 9424), (992, 7885), (1178, 6640), (1240, 6308), (1328, 5890), (1520, 5146), (1577, 4960), (1660, 4712), (2356, 3320), (2480, 3154), (2573, 3040), (2656, 2945)]