1820121290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{5717}}^1$

素因数の和:5847

約数の個数: 64

約数和(自身を含む): 3688796160

約数和(自身を除く): 1868674870

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 79, 130, 155, 158, 310, 395, 403, 790, 806, 1027, 2015, 2054, 2449, 4030, 4898, 5135, 5717, 10270, 11434, 12245, 24490, 28585, 31837, 57170, 63674, 74321, 148642, 159185, 177227, 318370, 354454, 371605, 451643, 743210, 886135, 903286, 1772270, 2258215, 2303951, 4516430, 4607902, 5871359, 11519755, 11742718, 14000933, 23039510, 28001866, 29356795, 58713590, 70004665, 140009330, 182012129, 364024258, 910060645, 1820121290]

約数ペア:

[(1, 1820121290), (2, 910060645), (5, 364024258), (10, 182012129), (13, 140009330), (26, 70004665), (31, 58713590), (62, 29356795), (65, 28001866), (79, 23039510), (130, 14000933), (155, 11742718), (158, 11519755), (310, 5871359), (395, 4607902), (403, 4516430), (790, 2303951), (806, 2258215), (1027, 1772270), (2015, 903286), (2054, 886135), (2449, 743210), (4030, 451643), (4898, 371605), (5135, 354454), (5717, 318370), (10270, 177227), (11434, 159185), (12245, 148642), (24490, 74321), (28585, 63674), (31837, 57170)]