87884560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{64621}}^1$

素因数の和:64651

約数の個数: 40

約数和(自身を含む): 216354456

約数和(自身を除く): 128469896

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 64621, 129242, 258484, 323105, 516968, 646210, 1033936, 1098557, 1292420, 2197114, 2584840, 4394228, 5169680, 5492785, 8788456, 10985570, 17576912, 21971140, 43942280, 87884560]

約数ペア:

[(1, 87884560), (2, 43942280), (4, 21971140), (5, 17576912), (8, 10985570), (10, 8788456), (16, 5492785), (17, 5169680), (20, 4394228), (34, 2584840), (40, 2197114), (68, 1292420), (80, 1098557), (85, 1033936), (136, 646210), (170, 516968), (272, 323105), (340, 258484), (680, 129242), (1360, 64621)]