89972680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{321331}}^1$

素因数の和:321349

約数の個数: 32

約数和(自身を含む): 231359040

約数和(自身を除く): 141386360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 321331, 642662, 1285324, 1606655, 2249317, 2570648, 3213310, 4498634, 6426620, 8997268, 11246585, 12853240, 17994536, 22493170, 44986340, 89972680]

約数ペア:

[(1, 89972680), (2, 44986340), (4, 22493170), (5, 17994536), (7, 12853240), (8, 11246585), (10, 8997268), (14, 6426620), (20, 4498634), (28, 3213310), (35, 2570648), (40, 2249317), (56, 1606655), (70, 1285324), (140, 642662), (280, 321331)]