129644840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{249317}}^1$

素因数の和:249341

約数の個数: 32

約数和(自身を含む): 314140680

約数和(自身を除く): 184495840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 249317, 498634, 997268, 1246585, 1994536, 2493170, 3241121, 4986340, 6482242, 9972680, 12964484, 16205605, 25928968, 32411210, 64822420, 129644840]

約数ペア:

[(1, 129644840), (2, 64822420), (4, 32411210), (5, 25928968), (8, 16205605), (10, 12964484), (13, 9972680), (20, 6482242), (26, 4986340), (40, 3241121), (52, 2493170), (65, 1994536), (104, 1246585), (130, 997268), (260, 498634), (520, 249317)]