81866820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10259}}^1$

素因数の和:10297

約数の個数: 96

約数和(自身を含む): 275788800

約数和(自身を除く): 193921980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3990, 7980, 10259, 20518, 30777, 41036, 51295, 61554, 71813, 102590, 123108, 143626, 153885, 194921, 205180, 215439, 287252, 307770, 359065, 389842, 430878, 584763, 615540, 718130, 779684, 861756, 974605, 1077195, 1169526, 1364447, 1436260, 1949210, 2154390, 2339052, 2728894, 2923815, 3898420, 4093341, 4308780, 5457788, 5847630, 6822235, 8186682, 11695260, 13644470, 16373364, 20466705, 27288940, 40933410, 81866820]

約数ペア:

[(1, 81866820), (2, 40933410), (3, 27288940), (4, 20466705), (5, 16373364), (6, 13644470), (7, 11695260), (10, 8186682), (12, 6822235), (14, 5847630), (15, 5457788), (19, 4308780), (20, 4093341), (21, 3898420), (28, 2923815), (30, 2728894), (35, 2339052), (38, 2154390), (42, 1949210), (57, 1436260), (60, 1364447), (70, 1169526), (76, 1077195), (84, 974605), (95, 861756), (105, 779684), (114, 718130), (133, 615540), (140, 584763), (190, 430878), (210, 389842), (228, 359065), (266, 307770), (285, 287252), (380, 215439), (399, 205180), (420, 194921), (532, 153885), (570, 143626), (665, 123108), (798, 102590), (1140, 71813), (1330, 61554), (1596, 51295), (1995, 41036), (2660, 30777), (3990, 20518), (7980, 10259)]