261297946

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1597}}^1$

素因数の和:1679

約数の個数: 64

約数和(自身を含む): 515450880

約数和(自身を除く): 254152934

約数列:

[1, 2, 7, 13, 14, 26, 29, 31, 58, 62, 91, 182, 203, 217, 377, 403, 406, 434, 754, 806, 899, 1597, 1798, 2639, 2821, 3194, 5278, 5642, 6293, 11179, 11687, 12586, 20761, 22358, 23374, 41522, 46313, 49507, 81809, 92626, 99014, 145327, 163618, 290654, 324191, 346549, 602069, 643591, 648382, 693098, 1204138, 1287182, 1435703, 2871406, 4214483, 4505137, 8428966, 9010274, 10049921, 18664139, 20099842, 37328278, 130648973, 261297946]

約数ペア:

[(1, 261297946), (2, 130648973), (7, 37328278), (13, 20099842), (14, 18664139), (26, 10049921), (29, 9010274), (31, 8428966), (58, 4505137), (62, 4214483), (91, 2871406), (182, 1435703), (203, 1287182), (217, 1204138), (377, 693098), (403, 648382), (406, 643591), (434, 602069), (754, 346549), (806, 324191), (899, 290654), (1597, 163618), (1798, 145327), (2639, 99014), (2821, 92626), (3194, 81809), (5278, 49507), (5642, 46313), (6293, 41522), (11179, 23374), (11687, 22358), (12586, 20761)]