78811280

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11069}}^1$

素因数の和:11171

約数の個数: 40

約数和(自身を含む): 185311800

約数和(自身を除く): 106500520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 11069, 22138, 44276, 55345, 88552, 110690, 177104, 221380, 442760, 885520, 985141, 1970282, 3940564, 4925705, 7881128, 9851410, 15762256, 19702820, 39405640, 78811280]

約数ペア:

[(1, 78811280), (2, 39405640), (4, 19702820), (5, 15762256), (8, 9851410), (10, 7881128), (16, 4925705), (20, 3940564), (40, 1970282), (80, 985141), (89, 885520), (178, 442760), (356, 221380), (445, 177104), (712, 110690), (890, 88552), (1424, 55345), (1780, 44276), (3560, 22138), (7120, 11069)]