156939980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{941}}^1$

素因数の和:1250

約数の個数: 48

約数和(自身を含む): 341832960

約数和(自身を除く): 184892980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 269, 310, 538, 620, 941, 1076, 1345, 1882, 2690, 3764, 4705, 5380, 8339, 9410, 16678, 18820, 29171, 33356, 41695, 58342, 83390, 116684, 145855, 166780, 253129, 291710, 506258, 583420, 1012516, 1265645, 2531290, 5062580, 7846999, 15693998, 31387996, 39234995, 78469990, 156939980]

約数ペア:

[(1, 156939980), (2, 78469990), (4, 39234995), (5, 31387996), (10, 15693998), (20, 7846999), (31, 5062580), (62, 2531290), (124, 1265645), (155, 1012516), (269, 583420), (310, 506258), (538, 291710), (620, 253129), (941, 166780), (1076, 145855), (1345, 116684), (1882, 83390), (2690, 58342), (3764, 41695), (4705, 33356), (5380, 29171), (8339, 18820), (9410, 16678)]