638677746

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{123631}}^1$

素因数の和:123687

約数の個数: 48

約数和(自身を含む): 1620073728

約数和(自身を除く): 981395982

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 41, 42, 63, 82, 123, 126, 246, 287, 369, 574, 738, 861, 1722, 2583, 5166, 123631, 247262, 370893, 741786, 865417, 1112679, 1730834, 2225358, 2596251, 5068871, 5192502, 7788753, 10137742, 15206613, 15577506, 30413226, 35482097, 45619839, 70964194, 91239678, 106446291, 212892582, 319338873, 638677746]

約数ペア:

[(1, 638677746), (2, 319338873), (3, 212892582), (6, 106446291), (7, 91239678), (9, 70964194), (14, 45619839), (18, 35482097), (21, 30413226), (41, 15577506), (42, 15206613), (63, 10137742), (82, 7788753), (123, 5192502), (126, 5068871), (246, 2596251), (287, 2225358), (369, 1730834), (574, 1112679), (738, 865417), (861, 741786), (1722, 370893), (2583, 247262), (5166, 123631)]