61530280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{31393}}^1$

素因数の和:31418

約数の個数: 48

約数和(自身を含む): 161051220

約数和(自身を除く): 99520940

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 31393, 62786, 125572, 156965, 219751, 251144, 313930, 439502, 627860, 879004, 1098755, 1255720, 1538257, 1758008, 2197510, 3076514, 4395020, 6153028, 7691285, 8790040, 12306056, 15382570, 30765140, 61530280]

約数ペア:

[(1, 61530280), (2, 30765140), (4, 15382570), (5, 12306056), (7, 8790040), (8, 7691285), (10, 6153028), (14, 4395020), (20, 3076514), (28, 2197510), (35, 1758008), (40, 1538257), (49, 1255720), (56, 1098755), (70, 879004), (98, 627860), (140, 439502), (196, 313930), (245, 251144), (280, 219751), (392, 156965), (490, 125572), (980, 62786), (1960, 31393)]