71388880

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:328

約数の個数: 80

約数和(自身を含む): 171752400

約数和(自身を除く): 100363520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 113, 149, 212, 226, 265, 298, 424, 452, 530, 565, 596, 745, 848, 904, 1060, 1130, 1192, 1490, 1808, 2120, 2260, 2384, 2980, 4240, 4520, 5960, 5989, 7897, 9040, 11920, 11978, 15794, 16837, 23956, 29945, 31588, 33674, 39485, 47912, 59890, 63176, 67348, 78970, 84185, 95824, 119780, 126352, 134696, 157940, 168370, 239560, 269392, 315880, 336740, 479120, 631760, 673480, 892361, 1346960, 1784722, 3569444, 4461805, 7138888, 8923610, 14277776, 17847220, 35694440, 71388880]

約数ペア:

[(1, 71388880), (2, 35694440), (4, 17847220), (5, 14277776), (8, 8923610), (10, 7138888), (16, 4461805), (20, 3569444), (40, 1784722), (53, 1346960), (80, 892361), (106, 673480), (113, 631760), (149, 479120), (212, 336740), (226, 315880), (265, 269392), (298, 239560), (424, 168370), (452, 157940), (530, 134696), (565, 126352), (596, 119780), (745, 95824), (848, 84185), (904, 78970), (1060, 67348), (1130, 63176), (1192, 59890), (1490, 47912), (1808, 39485), (2120, 33674), (2260, 31588), (2384, 29945), (2980, 23956), (4240, 16837), (4520, 15794), (5960, 11978), (5989, 11920), (7897, 9040)]