87021340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20051}}^1$

素因数の和:20098

約数の個数: 48

約数和(自身を含む): 215599104

約数和(自身を除く): 128577764

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 20051, 40102, 80204, 100255, 140357, 200510, 280714, 401020, 561428, 621581, 701785, 1243162, 1403570, 2486324, 2807140, 3107905, 4351067, 6215810, 8702134, 12431620, 17404268, 21755335, 43510670, 87021340]

約数ペア:

[(1, 87021340), (2, 43510670), (4, 21755335), (5, 17404268), (7, 12431620), (10, 8702134), (14, 6215810), (20, 4351067), (28, 3107905), (31, 2807140), (35, 2486324), (62, 1403570), (70, 1243162), (124, 701785), (140, 621581), (155, 561428), (217, 401020), (310, 280714), (434, 200510), (620, 140357), (868, 100255), (1085, 80204), (2170, 40102), (4340, 20051)]