257204464

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{311}}^1$

素因数の和:494

約数の個数: 80

約数和(自身を含む): 564535296

約数和(自身を除く): 307330832

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 88, 127, 148, 176, 254, 296, 311, 407, 508, 592, 622, 814, 1016, 1244, 1397, 1628, 2032, 2488, 2794, 3256, 3421, 4699, 4976, 5588, 6512, 6842, 9398, 11176, 11507, 13684, 18796, 22352, 23014, 27368, 37592, 39497, 46028, 51689, 54736, 75184, 78994, 92056, 103378, 126577, 157988, 184112, 206756, 253154, 315976, 413512, 434467, 506308, 631952, 827024, 868934, 1012616, 1461389, 1737868, 2025232, 2922778, 3475736, 5845556, 6951472, 11691112, 16075279, 23382224, 32150558, 64301116, 128602232, 257204464]

約数ペア:

[(1, 257204464), (2, 128602232), (4, 64301116), (8, 32150558), (11, 23382224), (16, 16075279), (22, 11691112), (37, 6951472), (44, 5845556), (74, 3475736), (88, 2922778), (127, 2025232), (148, 1737868), (176, 1461389), (254, 1012616), (296, 868934), (311, 827024), (407, 631952), (508, 506308), (592, 434467), (622, 413512), (814, 315976), (1016, 253154), (1244, 206756), (1397, 184112), (1628, 157988), (2032, 126577), (2488, 103378), (2794, 92056), (3256, 78994), (3421, 75184), (4699, 54736), (4976, 51689), (5588, 46028), (6512, 39497), (6842, 37592), (9398, 27368), (11176, 23014), (11507, 22352), (13684, 18796)]