721170086

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{983}}^1$

素因数の和:1173

約数の個数: 64

約数和(自身を含む): 1388620800

約数和(自身を除く): 667450714

約数列:

[1, 2, 7, 13, 14, 26, 29, 58, 91, 139, 182, 203, 278, 377, 406, 754, 973, 983, 1807, 1946, 1966, 2639, 3614, 4031, 5278, 6881, 8062, 12649, 12779, 13762, 25298, 25558, 28217, 28507, 52403, 56434, 57014, 89453, 104806, 136637, 178906, 199549, 273274, 366821, 370591, 399098, 733642, 741182, 956459, 1776281, 1912918, 2594137, 3552562, 3962473, 5188274, 7924946, 12433967, 24867934, 27737311, 51512149, 55474622, 103024298, 360585043, 721170086]

約数ペア:

[(1, 721170086), (2, 360585043), (7, 103024298), (13, 55474622), (14, 51512149), (26, 27737311), (29, 24867934), (58, 12433967), (91, 7924946), (139, 5188274), (182, 3962473), (203, 3552562), (278, 2594137), (377, 1912918), (406, 1776281), (754, 956459), (973, 741182), (983, 733642), (1807, 399098), (1946, 370591), (1966, 366821), (2639, 273274), (3614, 199549), (4031, 178906), (5278, 136637), (6881, 104806), (8062, 89453), (12649, 57014), (12779, 56434), (13762, 52403), (25298, 28507), (25558, 28217)]