80271996

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{647}}^1$

素因数の和:879

約数の個数: 72

約数和(自身を含む): 219252096

約数和(自身を除く): 138980100

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 211, 294, 422, 588, 633, 647, 844, 1266, 1294, 1477, 1941, 2532, 2588, 2954, 3882, 4431, 4529, 5908, 7764, 8862, 9058, 10339, 13587, 17724, 18116, 20678, 27174, 31017, 31703, 41356, 54348, 62034, 63406, 95109, 124068, 126812, 136517, 190218, 273034, 380436, 409551, 546068, 819102, 955619, 1638204, 1911238, 2866857, 3822476, 5733714, 6689333, 11467428, 13378666, 20067999, 26757332, 40135998, 80271996]

約数ペア:

[(1, 80271996), (2, 40135998), (3, 26757332), (4, 20067999), (6, 13378666), (7, 11467428), (12, 6689333), (14, 5733714), (21, 3822476), (28, 2866857), (42, 1911238), (49, 1638204), (84, 955619), (98, 819102), (147, 546068), (196, 409551), (211, 380436), (294, 273034), (422, 190218), (588, 136517), (633, 126812), (647, 124068), (844, 95109), (1266, 63406), (1294, 62034), (1477, 54348), (1941, 41356), (2532, 31703), (2588, 31017), (2954, 27174), (3882, 20678), (4431, 18116), (4529, 17724), (5908, 13587), (7764, 10339), (8862, 9058)]