257393440

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:434

約数の個数: 96

約数和(自身を含む): 627056640

約数和(自身を除く): 369663200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 127, 160, 212, 239, 254, 265, 424, 478, 508, 530, 635, 848, 956, 1016, 1060, 1195, 1270, 1696, 1912, 2032, 2120, 2390, 2540, 3824, 4064, 4240, 4780, 5080, 6731, 7648, 8480, 9560, 10160, 12667, 13462, 19120, 20320, 25334, 26924, 30353, 33655, 38240, 50668, 53848, 60706, 63335, 67310, 101336, 107696, 121412, 126670, 134620, 151765, 202672, 215392, 242824, 253340, 269240, 303530, 405344, 485648, 506680, 538480, 607060, 971296, 1013360, 1076960, 1214120, 1608709, 2026720, 2428240, 3217418, 4856480, 6434836, 8043545, 12869672, 16087090, 25739344, 32174180, 51478688, 64348360, 128696720, 257393440]

約数ペア:

[(1, 257393440), (2, 128696720), (4, 64348360), (5, 51478688), (8, 32174180), (10, 25739344), (16, 16087090), (20, 12869672), (32, 8043545), (40, 6434836), (53, 4856480), (80, 3217418), (106, 2428240), (127, 2026720), (160, 1608709), (212, 1214120), (239, 1076960), (254, 1013360), (265, 971296), (424, 607060), (478, 538480), (508, 506680), (530, 485648), (635, 405344), (848, 303530), (956, 269240), (1016, 253340), (1060, 242824), (1195, 215392), (1270, 202672), (1696, 151765), (1912, 134620), (2032, 126670), (2120, 121412), (2390, 107696), (2540, 101336), (3824, 67310), (4064, 63335), (4240, 60706), (4780, 53848), (5080, 50668), (6731, 38240), (7648, 33655), (8480, 30353), (9560, 26924), (10160, 25334), (12667, 20320), (13462, 19120)]