128873072

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{217691}}^1$

素因数の和:217736

約数の個数: 20

約数和(自身を含む): 256441176

約数和(自身を除く): 127568104

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 217691, 435382, 870764, 1741528, 3483056, 8054567, 16109134, 32218268, 64436536, 128873072]

約数ペア:

[(1, 128873072), (2, 64436536), (4, 32218268), (8, 16109134), (16, 8054567), (37, 3483056), (74, 1741528), (148, 870764), (296, 435382), (592, 217691)]