78866840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151667}}^1$

素因数の和:151691

約数の個数: 32

約数和(自身を含む): 191101680

約数和(自身を除く): 112234840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 151667, 303334, 606668, 758335, 1213336, 1516670, 1971671, 3033340, 3943342, 6066680, 7886684, 9858355, 15773368, 19716710, 39433420, 78866840]

約数ペア:

[(1, 78866840), (2, 39433420), (4, 19716710), (5, 15773368), (8, 9858355), (10, 7886684), (13, 6066680), (20, 3943342), (26, 3033340), (40, 1971671), (52, 1516670), (65, 1213336), (104, 758335), (130, 606668), (260, 303334), (520, 151667)]