20525148

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1031}}^1$

素因数の和:1127

約数の個数: 72

約数和(自身を含む): 60103680

約数和(自身を除く): 39578532

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 79, 84, 126, 158, 237, 252, 316, 474, 553, 711, 948, 1031, 1106, 1422, 1659, 2062, 2212, 2844, 3093, 3318, 4124, 4977, 6186, 6636, 7217, 9279, 9954, 12372, 14434, 18558, 19908, 21651, 28868, 37116, 43302, 64953, 81449, 86604, 129906, 162898, 244347, 259812, 325796, 488694, 570143, 733041, 977388, 1140286, 1466082, 1710429, 2280572, 2932164, 3420858, 5131287, 6841716, 10262574, 20525148]

約数ペア:

[(1, 20525148), (2, 10262574), (3, 6841716), (4, 5131287), (6, 3420858), (7, 2932164), (9, 2280572), (12, 1710429), (14, 1466082), (18, 1140286), (21, 977388), (28, 733041), (36, 570143), (42, 488694), (63, 325796), (79, 259812), (84, 244347), (126, 162898), (158, 129906), (237, 86604), (252, 81449), (316, 64953), (474, 43302), (553, 37116), (711, 28868), (948, 21651), (1031, 19908), (1106, 18558), (1422, 14434), (1659, 12372), (2062, 9954), (2212, 9279), (2844, 7217), (3093, 6636), (3318, 6186), (4124, 4977)]