139193720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{112253}}^1$

素因数の和:112295

約数の個数: 32

約数和(自身を含む): 323291520

約数和(自身を除く): 184097800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 112253, 224506, 449012, 561265, 898024, 1122530, 2245060, 3479843, 4490120, 6959686, 13919372, 17399215, 27838744, 34798430, 69596860, 139193720]

約数ペア:

[(1, 139193720), (2, 69596860), (4, 34798430), (5, 27838744), (8, 17399215), (10, 13919372), (20, 6959686), (31, 4490120), (40, 3479843), (62, 2245060), (124, 1122530), (155, 898024), (248, 561265), (310, 449012), (620, 224506), (1240, 112253)]