15678520940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2909}}^1\times {\mathrm{8693}}^1$

素因数の和:11642

約数の個数: 48

約数和(自身を含む): 34002581760

約数和(自身を除く): 18324060820

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2909, 5818, 8693, 11636, 14545, 17386, 29090, 34772, 43465, 58180, 86930, 90179, 173860, 180358, 269483, 360716, 450895, 538966, 901790, 1077932, 1347415, 1803580, 2694830, 5389660, 25287937, 50575874, 101151748, 126439685, 252879370, 505758740, 783926047, 1567852094, 3135704188, 3919630235, 7839260470, 15678520940]

約数ペア:

[(1, 15678520940), (2, 7839260470), (4, 3919630235), (5, 3135704188), (10, 1567852094), (20, 783926047), (31, 505758740), (62, 252879370), (124, 126439685), (155, 101151748), (310, 50575874), (620, 25287937), (2909, 5389660), (5818, 2694830), (8693, 1803580), (11636, 1347415), (14545, 1077932), (17386, 901790), (29090, 538966), (34772, 450895), (43465, 360716), (58180, 269483), (86930, 180358), (90179, 173860)]