78663720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{655531}}^1$

素因数の和:655545

約数の個数: 32

約数和(自身を含む): 235991520

約数和(自身を除く): 157327800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 655531, 1311062, 1966593, 2622124, 3277655, 3933186, 5244248, 6555310, 7866372, 9832965, 13110620, 15732744, 19665930, 26221240, 39331860, 78663720]

約数ペア:

[(1, 78663720), (2, 39331860), (3, 26221240), (4, 19665930), (5, 15732744), (6, 13110620), (8, 9832965), (10, 7866372), (12, 6555310), (15, 5244248), (20, 3933186), (24, 3277655), (30, 2622124), (40, 1966593), (60, 1311062), (120, 655531)]