129008980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{829}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 281111040

約数和(自身を除く): 152102060

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 251, 310, 502, 620, 829, 1004, 1255, 1658, 2510, 3316, 4145, 5020, 7781, 8290, 15562, 16580, 25699, 31124, 38905, 51398, 77810, 102796, 128495, 155620, 208079, 256990, 416158, 513980, 832316, 1040395, 2080790, 4161580, 6450449, 12900898, 25801796, 32252245, 64504490, 129008980]

約数ペア:

[(1, 129008980), (2, 64504490), (4, 32252245), (5, 25801796), (10, 12900898), (20, 6450449), (31, 4161580), (62, 2080790), (124, 1040395), (155, 832316), (251, 513980), (310, 416158), (502, 256990), (620, 208079), (829, 155620), (1004, 128495), (1255, 102796), (1658, 77810), (2510, 51398), (3316, 38905), (4145, 31124), (5020, 25699), (7781, 16580), (8290, 15562)]