639533640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{1979}}^1\times {\mathrm{2693}}^1$

素因数の和:4686

約数の個数: 64

約数和(自身を含む): 1920283200

約数和(自身を除く): 1280749560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 1979, 2693, 3958, 5386, 5937, 7916, 8079, 9895, 10772, 11874, 13465, 15832, 16158, 19790, 21544, 23748, 26930, 29685, 32316, 39580, 40395, 47496, 53860, 59370, 64632, 79160, 80790, 107720, 118740, 161580, 237480, 323160, 5329447, 10658894, 15988341, 21317788, 26647235, 31976682, 42635576, 53294470, 63953364, 79941705, 106588940, 127906728, 159883410, 213177880, 319766820, 639533640]

約数ペア:

[(1, 639533640), (2, 319766820), (3, 213177880), (4, 159883410), (5, 127906728), (6, 106588940), (8, 79941705), (10, 63953364), (12, 53294470), (15, 42635576), (20, 31976682), (24, 26647235), (30, 21317788), (40, 15988341), (60, 10658894), (120, 5329447), (1979, 323160), (2693, 237480), (3958, 161580), (5386, 118740), (5937, 107720), (7916, 80790), (8079, 79160), (9895, 64632), (10772, 59370), (11874, 53860), (13465, 47496), (15832, 40395), (16158, 39580), (19790, 32316), (21544, 29685), (23748, 26930)]