258528040

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:227

約数の個数: 128

約数和(自身を含む): 632966400

約数和(自身を除く): 374438360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 43, 58, 71, 73, 86, 116, 142, 145, 146, 172, 215, 232, 284, 290, 292, 344, 355, 365, 430, 568, 580, 584, 710, 730, 860, 1160, 1247, 1420, 1460, 1720, 2059, 2117, 2494, 2840, 2920, 3053, 3139, 4118, 4234, 4988, 5183, 6106, 6235, 6278, 8236, 8468, 9976, 10295, 10366, 10585, 12212, 12470, 12556, 15265, 15695, 16472, 16936, 20590, 20732, 21170, 24424, 24940, 25112, 25915, 30530, 31390, 41180, 41464, 42340, 49880, 51830, 61060, 62780, 82360, 84680, 88537, 91031, 103660, 122120, 125560, 150307, 177074, 182062, 207320, 222869, 300614, 354148, 364124, 442685, 445738, 455155, 601228, 708296, 728248, 751535, 885370, 891476, 910310, 1114345, 1202456, 1503070, 1770740, 1782952, 1820620, 2228690, 3006140, 3541480, 3641240, 4457380, 6012280, 6463201, 8914760, 12926402, 25852804, 32316005, 51705608, 64632010, 129264020, 258528040]

約数ペア:

[(1, 258528040), (2, 129264020), (4, 64632010), (5, 51705608), (8, 32316005), (10, 25852804), (20, 12926402), (29, 8914760), (40, 6463201), (43, 6012280), (58, 4457380), (71, 3641240), (73, 3541480), (86, 3006140), (116, 2228690), (142, 1820620), (145, 1782952), (146, 1770740), (172, 1503070), (215, 1202456), (232, 1114345), (284, 910310), (290, 891476), (292, 885370), (344, 751535), (355, 728248), (365, 708296), (430, 601228), (568, 455155), (580, 445738), (584, 442685), (710, 364124), (730, 354148), (860, 300614), (1160, 222869), (1247, 207320), (1420, 182062), (1460, 177074), (1720, 150307), (2059, 125560), (2117, 122120), (2494, 103660), (2840, 91031), (2920, 88537), (3053, 84680), (3139, 82360), (4118, 62780), (4234, 61060), (4988, 51830), (5183, 49880), (6106, 42340), (6235, 41464), (6278, 41180), (8236, 31390), (8468, 30530), (9976, 25915), (10295, 25112), (10366, 24940), (10585, 24424), (12212, 21170), (12470, 20732), (12556, 20590), (15265, 16936), (15695, 16472)]