31588240

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{6473}}^1$

素因数の和:6547

約数の個数: 40

約数和(自身を含む): 74658168

約数和(自身を除く): 43069928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 6473, 12946, 25892, 32365, 51784, 64730, 103568, 129460, 258920, 394853, 517840, 789706, 1579412, 1974265, 3158824, 3948530, 6317648, 7897060, 15794120, 31588240]

約数ペア:

[(1, 31588240), (2, 15794120), (4, 7897060), (5, 6317648), (8, 3948530), (10, 3158824), (16, 1974265), (20, 1579412), (40, 789706), (61, 517840), (80, 394853), (122, 258920), (244, 129460), (305, 103568), (488, 64730), (610, 51784), (976, 32365), (1220, 25892), (2440, 12946), (4880, 6473)]