128439220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{70571}}^1$

素因数の和:70600

約数の個数: 48

約数和(自身を含む): 331970688

約数和(自身を除く): 203531468

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 70571, 141142, 282284, 352855, 493997, 705710, 917423, 987994, 1411420, 1834846, 1975988, 2469985, 3669692, 4587115, 4939970, 6421961, 9174230, 9879940, 12843922, 18348460, 25687844, 32109805, 64219610, 128439220]

約数ペア:

[(1, 128439220), (2, 64219610), (4, 32109805), (5, 25687844), (7, 18348460), (10, 12843922), (13, 9879940), (14, 9174230), (20, 6421961), (26, 4939970), (28, 4587115), (35, 3669692), (52, 2469985), (65, 1975988), (70, 1834846), (91, 1411420), (130, 987994), (140, 917423), (182, 705710), (260, 493997), (364, 352855), (455, 282284), (910, 141142), (1820, 70571)]