42641890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 85536000

約数和(自身を除く): 42894110

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 71, 95, 109, 142, 145, 190, 218, 290, 355, 545, 551, 710, 1090, 1102, 1349, 2059, 2071, 2698, 2755, 3161, 4118, 4142, 5510, 6322, 6745, 7739, 10295, 10355, 13490, 15478, 15805, 20590, 20710, 31610, 38695, 39121, 60059, 77390, 78242, 120118, 147041, 195605, 224431, 294082, 300295, 391210, 448862, 600590, 735205, 1122155, 1470410, 2244310, 4264189, 8528378, 21320945, 42641890]

約数ペア:

[(1, 42641890), (2, 21320945), (5, 8528378), (10, 4264189), (19, 2244310), (29, 1470410), (38, 1122155), (58, 735205), (71, 600590), (95, 448862), (109, 391210), (142, 300295), (145, 294082), (190, 224431), (218, 195605), (290, 147041), (355, 120118), (545, 78242), (551, 77390), (710, 60059), (1090, 39121), (1102, 38695), (1349, 31610), (2059, 20710), (2071, 20590), (2698, 15805), (2755, 15478), (3161, 13490), (4118, 10355), (4142, 10295), (5510, 7739), (6322, 6745)]