12039920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^2$

素因数の和:210

約数の個数: 60

約数和(自身を含む): 29800920

約数和(自身を除く): 17761000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 89, 95, 152, 178, 190, 304, 356, 380, 445, 712, 760, 890, 1424, 1520, 1691, 1780, 3382, 3560, 6764, 7120, 7921, 8455, 13528, 15842, 16910, 27056, 31684, 33820, 39605, 63368, 67640, 79210, 126736, 135280, 150499, 158420, 300998, 316840, 601996, 633680, 752495, 1203992, 1504990, 2407984, 3009980, 6019960, 12039920]

約数ペア:

[(1, 12039920), (2, 6019960), (4, 3009980), (5, 2407984), (8, 1504990), (10, 1203992), (16, 752495), (19, 633680), (20, 601996), (38, 316840), (40, 300998), (76, 158420), (80, 150499), (89, 135280), (95, 126736), (152, 79210), (178, 67640), (190, 63368), (304, 39605), (356, 33820), (380, 31684), (445, 27056), (712, 16910), (760, 15842), (890, 13528), (1424, 8455), (1520, 7921), (1691, 7120), (1780, 6764), (3382, 3560)]