77938420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1187}}^1$

素因数の和:1277

約数の個数: 72

約数和(自身を含む): 193396896

約数和(自身を除く): 115458476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 67, 70, 98, 134, 140, 196, 245, 268, 335, 469, 490, 670, 938, 980, 1187, 1340, 1876, 2345, 2374, 3283, 4690, 4748, 5935, 6566, 8309, 9380, 11870, 13132, 16415, 16618, 23740, 32830, 33236, 41545, 58163, 65660, 79529, 83090, 116326, 159058, 166180, 232652, 290815, 318116, 397645, 556703, 581630, 795290, 1113406, 1163260, 1590580, 2226812, 2783515, 3896921, 5567030, 7793842, 11134060, 15587684, 19484605, 38969210, 77938420]

約数ペア:

[(1, 77938420), (2, 38969210), (4, 19484605), (5, 15587684), (7, 11134060), (10, 7793842), (14, 5567030), (20, 3896921), (28, 2783515), (35, 2226812), (49, 1590580), (67, 1163260), (70, 1113406), (98, 795290), (134, 581630), (140, 556703), (196, 397645), (245, 318116), (268, 290815), (335, 232652), (469, 166180), (490, 159058), (670, 116326), (938, 83090), (980, 79529), (1187, 65660), (1340, 58163), (1876, 41545), (2345, 33236), (2374, 32830), (3283, 23740), (4690, 16618), (4748, 16415), (5935, 13132), (6566, 11870), (8309, 9380)]