1779687680

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{44851}}^1$

素因数の和:44903

約数の個数: 72

約数和(自身を含む): 4400519424

約数和(自身を除く): 2620831744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 39680, 44851, 89702, 179404, 224255, 358808, 448510, 717616, 897020, 1390381, 1435232, 1794040, 2780762, 2870464, 3588080, 5561524, 5740928, 6951905, 7176160, 11123048, 11481856, 13903810, 14352320, 22246096, 27807620, 28704640, 44492192, 55615240, 57409280, 88984384, 111230480, 177968768, 222460960, 355937536, 444921920, 889843840, 1779687680]

約数ペア:

[(1, 1779687680), (2, 889843840), (4, 444921920), (5, 355937536), (8, 222460960), (10, 177968768), (16, 111230480), (20, 88984384), (31, 57409280), (32, 55615240), (40, 44492192), (62, 28704640), (64, 27807620), (80, 22246096), (124, 14352320), (128, 13903810), (155, 11481856), (160, 11123048), (248, 7176160), (256, 6951905), (310, 5740928), (320, 5561524), (496, 3588080), (620, 2870464), (640, 2780762), (992, 1794040), (1240, 1435232), (1280, 1390381), (1984, 897020), (2480, 717616), (3968, 448510), (4960, 358808), (7936, 224255), (9920, 179404), (19840, 89702), (39680, 44851)]