254796280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{1229}}^1$

素因数の和:1384

約数の個数: 64

約数和(自身を含む): 589809600

約数和(自身を除く): 335013320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 73, 142, 146, 284, 292, 355, 365, 568, 584, 710, 730, 1229, 1420, 1460, 2458, 2840, 2920, 4916, 5183, 6145, 9832, 10366, 12290, 20732, 24580, 25915, 41464, 49160, 51830, 87259, 89717, 103660, 174518, 179434, 207320, 349036, 358868, 436295, 448585, 698072, 717736, 872590, 897170, 1745180, 1794340, 3490360, 3588680, 6369907, 12739814, 25479628, 31849535, 50959256, 63699070, 127398140, 254796280]

約数ペア:

[(1, 254796280), (2, 127398140), (4, 63699070), (5, 50959256), (8, 31849535), (10, 25479628), (20, 12739814), (40, 6369907), (71, 3588680), (73, 3490360), (142, 1794340), (146, 1745180), (284, 897170), (292, 872590), (355, 717736), (365, 698072), (568, 448585), (584, 436295), (710, 358868), (730, 349036), (1229, 207320), (1420, 179434), (1460, 174518), (2458, 103660), (2840, 89717), (2920, 87259), (4916, 51830), (5183, 49160), (6145, 41464), (9832, 25915), (10366, 24580), (12290, 20732)]