156928220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{2971}}^1$

素因数の和:3138

約数の個数: 48

約数和(自身を含む): 349507200

約数和(自身を除く): 192578980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 380, 556, 695, 1390, 2641, 2780, 2971, 5282, 5942, 10564, 11884, 13205, 14855, 26410, 29710, 52820, 56449, 59420, 112898, 225796, 282245, 412969, 564490, 825938, 1128980, 1651876, 2064845, 4129690, 7846411, 8259380, 15692822, 31385644, 39232055, 78464110, 156928220]

約数ペア:

[(1, 156928220), (2, 78464110), (4, 39232055), (5, 31385644), (10, 15692822), (19, 8259380), (20, 7846411), (38, 4129690), (76, 2064845), (95, 1651876), (139, 1128980), (190, 825938), (278, 564490), (380, 412969), (556, 282245), (695, 225796), (1390, 112898), (2641, 59420), (2780, 56449), (2971, 52820), (5282, 29710), (5942, 26410), (10564, 14855), (11884, 13205)]