128565680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1103}}^1$

素因数の和:1194

約数の個数: 80

約数和(自身を含む): 315408384

約数和(自身を除く): 186842704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 47, 62, 80, 94, 124, 155, 188, 235, 248, 310, 376, 470, 496, 620, 752, 940, 1103, 1240, 1457, 1880, 2206, 2480, 2914, 3760, 4412, 5515, 5828, 7285, 8824, 11030, 11656, 14570, 17648, 22060, 23312, 29140, 34193, 44120, 51841, 58280, 68386, 88240, 103682, 116560, 136772, 170965, 207364, 259205, 273544, 341930, 414728, 518410, 547088, 683860, 829456, 1036820, 1367720, 1607071, 2073640, 2735440, 3214142, 4147280, 6428284, 8035355, 12856568, 16070710, 25713136, 32141420, 64282840, 128565680]

約数ペア:

[(1, 128565680), (2, 64282840), (4, 32141420), (5, 25713136), (8, 16070710), (10, 12856568), (16, 8035355), (20, 6428284), (31, 4147280), (40, 3214142), (47, 2735440), (62, 2073640), (80, 1607071), (94, 1367720), (124, 1036820), (155, 829456), (188, 683860), (235, 547088), (248, 518410), (310, 414728), (376, 341930), (470, 273544), (496, 259205), (620, 207364), (752, 170965), (940, 136772), (1103, 116560), (1240, 103682), (1457, 88240), (1880, 68386), (2206, 58280), (2480, 51841), (2914, 44120), (3760, 34193), (4412, 29140), (5515, 23312), (5828, 22060), (7285, 17648), (8824, 14570), (11030, 11656)]