247664360

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1\times {\mathrm{349}}^1$

素因数の和:630

約数の個数: 64

約数和(自身を含む): 567378000

約数和(自身を除く): 319713640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 157, 226, 314, 349, 452, 565, 628, 698, 785, 904, 1130, 1256, 1396, 1570, 1745, 2260, 2792, 3140, 3490, 4520, 6280, 6980, 13960, 17741, 35482, 39437, 54793, 70964, 78874, 88705, 109586, 141928, 157748, 177410, 197185, 219172, 273965, 315496, 354820, 394370, 438344, 547930, 709640, 788740, 1095860, 1577480, 2191720, 6191609, 12383218, 24766436, 30958045, 49532872, 61916090, 123832180, 247664360]

約数ペア:

[(1, 247664360), (2, 123832180), (4, 61916090), (5, 49532872), (8, 30958045), (10, 24766436), (20, 12383218), (40, 6191609), (113, 2191720), (157, 1577480), (226, 1095860), (314, 788740), (349, 709640), (452, 547930), (565, 438344), (628, 394370), (698, 354820), (785, 315496), (904, 273965), (1130, 219172), (1256, 197185), (1396, 177410), (1570, 157748), (1745, 141928), (2260, 109586), (2792, 88705), (3140, 78874), (3490, 70964), (4520, 54793), (6280, 39437), (6980, 35482), (13960, 17741)]