31287680

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:152

約数の個数: 128

約数和(自身を含む): 82252800

約数和(自身を除く): 50965120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 83, 95, 124, 128, 152, 155, 160, 166, 190, 248, 304, 310, 320, 332, 380, 415, 496, 589, 608, 620, 640, 664, 760, 830, 992, 1178, 1216, 1240, 1328, 1520, 1577, 1660, 1984, 2356, 2432, 2480, 2573, 2656, 2945, 3040, 3154, 3320, 3968, 4712, 4960, 5146, 5312, 5890, 6080, 6308, 6640, 7885, 9424, 9920, 10292, 10624, 11780, 12160, 12616, 12865, 13280, 15770, 18848, 19840, 20584, 23560, 25232, 25730, 26560, 31540, 37696, 41168, 47120, 48887, 50464, 51460, 53120, 63080, 75392, 82336, 94240, 97774, 100928, 102920, 126160, 164672, 188480, 195548, 201856, 205840, 244435, 252320, 329344, 376960, 391096, 411680, 488870, 504640, 782192, 823360, 977740, 1009280, 1564384, 1646720, 1955480, 3128768, 3910960, 6257536, 7821920, 15643840, 31287680]

約数ペア:

[(1, 31287680), (2, 15643840), (4, 7821920), (5, 6257536), (8, 3910960), (10, 3128768), (16, 1955480), (19, 1646720), (20, 1564384), (31, 1009280), (32, 977740), (38, 823360), (40, 782192), (62, 504640), (64, 488870), (76, 411680), (80, 391096), (83, 376960), (95, 329344), (124, 252320), (128, 244435), (152, 205840), (155, 201856), (160, 195548), (166, 188480), (190, 164672), (248, 126160), (304, 102920), (310, 100928), (320, 97774), (332, 94240), (380, 82336), (415, 75392), (496, 63080), (589, 53120), (608, 51460), (620, 50464), (640, 48887), (664, 47120), (760, 41168), (830, 37696), (992, 31540), (1178, 26560), (1216, 25730), (1240, 25232), (1328, 23560), (1520, 20584), (1577, 19840), (1660, 18848), (1984, 15770), (2356, 13280), (2432, 12865), (2480, 12616), (2573, 12160), (2656, 11780), (2945, 10624), (3040, 10292), (3154, 9920), (3320, 9424), (3968, 7885), (4712, 6640), (4960, 6308), (5146, 6080), (5312, 5890)]