28710640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{307}}^1$

素因数の和:494

約数の個数: 80

約数和(自身を含む): 76995072

約数和(自身を除く): 48284432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 167, 280, 307, 334, 560, 614, 668, 835, 1169, 1228, 1336, 1535, 1670, 2149, 2338, 2456, 2672, 3070, 3340, 4298, 4676, 4912, 5845, 6140, 6680, 8596, 9352, 10745, 11690, 12280, 13360, 17192, 18704, 21490, 23380, 24560, 34384, 42980, 46760, 51269, 85960, 93520, 102538, 171920, 205076, 256345, 358883, 410152, 512690, 717766, 820304, 1025380, 1435532, 1794415, 2050760, 2871064, 3588830, 4101520, 5742128, 7177660, 14355320, 28710640]

約数ペア:

[(1, 28710640), (2, 14355320), (4, 7177660), (5, 5742128), (7, 4101520), (8, 3588830), (10, 2871064), (14, 2050760), (16, 1794415), (20, 1435532), (28, 1025380), (35, 820304), (40, 717766), (56, 512690), (70, 410152), (80, 358883), (112, 256345), (140, 205076), (167, 171920), (280, 102538), (307, 93520), (334, 85960), (560, 51269), (614, 46760), (668, 42980), (835, 34384), (1169, 24560), (1228, 23380), (1336, 21490), (1535, 18704), (1670, 17192), (2149, 13360), (2338, 12280), (2456, 11690), (2672, 10745), (3070, 9352), (3340, 8596), (4298, 6680), (4676, 6140), (4912, 5845)]