642516880

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{151537}}^1$

素因数の和:151603

約数の個数: 40

約数和(自身を含む): 1522047672

約数和(自身を除く): 879530792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 151537, 303074, 606148, 757685, 1212296, 1515370, 2424592, 3030740, 6061480, 8031461, 12122960, 16062922, 32125844, 40157305, 64251688, 80314610, 128503376, 160629220, 321258440, 642516880]

約数ペア:

[(1, 642516880), (2, 321258440), (4, 160629220), (5, 128503376), (8, 80314610), (10, 64251688), (16, 40157305), (20, 32125844), (40, 16062922), (53, 12122960), (80, 8031461), (106, 6061480), (212, 3030740), (265, 2424592), (424, 1515370), (530, 1212296), (848, 757685), (1060, 606148), (2120, 303074), (4240, 151537)]