85678840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164767}}^1$

素因数の和:164791

約数の個数: 32

約数和(自身を含む): 207607680

約数和(自身を除く): 121928840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 164767, 329534, 659068, 823835, 1318136, 1647670, 2141971, 3295340, 4283942, 6590680, 8567884, 10709855, 17135768, 21419710, 42839420, 85678840]

約数ペア:

[(1, 85678840), (2, 42839420), (4, 21419710), (5, 17135768), (8, 10709855), (10, 8567884), (13, 6590680), (20, 4283942), (26, 3295340), (40, 2141971), (52, 1647670), (65, 1318136), (104, 823835), (130, 659068), (260, 329534), (520, 164767)]