81016404

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{653}}^1$

素因数の和:885

約数の個数: 72

約数和(自身を含む): 221282208

約数和(自身を除く): 140265804

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 211, 294, 422, 588, 633, 653, 844, 1266, 1306, 1477, 1959, 2532, 2612, 2954, 3918, 4431, 4571, 5908, 7836, 8862, 9142, 10339, 13713, 17724, 18284, 20678, 27426, 31017, 31997, 41356, 54852, 62034, 63994, 95991, 124068, 127988, 137783, 191982, 275566, 383964, 413349, 551132, 826698, 964481, 1653396, 1928962, 2893443, 3857924, 5786886, 6751367, 11573772, 13502734, 20254101, 27005468, 40508202, 81016404]

約数ペア:

[(1, 81016404), (2, 40508202), (3, 27005468), (4, 20254101), (6, 13502734), (7, 11573772), (12, 6751367), (14, 5786886), (21, 3857924), (28, 2893443), (42, 1928962), (49, 1653396), (84, 964481), (98, 826698), (147, 551132), (196, 413349), (211, 383964), (294, 275566), (422, 191982), (588, 137783), (633, 127988), (653, 124068), (844, 95991), (1266, 63994), (1306, 62034), (1477, 54852), (1959, 41356), (2532, 31997), (2612, 31017), (2954, 27426), (3918, 20678), (4431, 18284), (4571, 17724), (5908, 13713), (7836, 10339), (8862, 9142)]