287408940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{52639}}^1$

素因数の和:52671

約数の個数: 96

約数和(自身を含む): 990474240

約数和(自身を除く): 703065300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 52639, 105278, 157917, 210556, 263195, 315834, 368473, 526390, 631668, 684307, 736946, 789585, 1052780, 1105419, 1368614, 1473892, 1579170, 1842365, 2052921, 2210838, 2737228, 3158340, 3421535, 3684730, 4105842, 4421676, 4790149, 5527095, 6843070, 7369460, 8211684, 9580298, 10264605, 11054190, 13686140, 14370447, 19160596, 20529210, 22108380, 23950745, 28740894, 41058420, 47901490, 57481788, 71852235, 95802980, 143704470, 287408940]

約数ペア:

[(1, 287408940), (2, 143704470), (3, 95802980), (4, 71852235), (5, 57481788), (6, 47901490), (7, 41058420), (10, 28740894), (12, 23950745), (13, 22108380), (14, 20529210), (15, 19160596), (20, 14370447), (21, 13686140), (26, 11054190), (28, 10264605), (30, 9580298), (35, 8211684), (39, 7369460), (42, 6843070), (52, 5527095), (60, 4790149), (65, 4421676), (70, 4105842), (78, 3684730), (84, 3421535), (91, 3158340), (105, 2737228), (130, 2210838), (140, 2052921), (156, 1842365), (182, 1579170), (195, 1473892), (210, 1368614), (260, 1105419), (273, 1052780), (364, 789585), (390, 736946), (420, 684307), (455, 631668), (546, 526390), (780, 368473), (910, 315834), (1092, 263195), (1365, 210556), (1820, 157917), (2730, 105278), (5460, 52639)]