177268540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4027}}^1$

素因数の和:4138

約数の個数: 48

約数和(自身を含む): 389781504

約数和(自身を除く): 212512964

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 710, 1420, 2201, 4027, 4402, 8054, 8804, 11005, 16108, 20135, 22010, 40270, 44020, 80540, 124837, 249674, 285917, 499348, 571834, 624185, 1143668, 1248370, 1429585, 2496740, 2859170, 5718340, 8863427, 17726854, 35453708, 44317135, 88634270, 177268540]

約数ペア:

[(1, 177268540), (2, 88634270), (4, 44317135), (5, 35453708), (10, 17726854), (20, 8863427), (31, 5718340), (62, 2859170), (71, 2496740), (124, 1429585), (142, 1248370), (155, 1143668), (284, 624185), (310, 571834), (355, 499348), (620, 285917), (710, 249674), (1420, 124837), (2201, 80540), (4027, 44020), (4402, 40270), (8054, 22010), (8804, 20135), (11005, 16108)]