257752810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{1297}}^1$

素因数の和:1495

約数の個数: 64

約数和(自身を含む): 565221888

約数和(自身を除く): 307469078

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 167, 170, 238, 334, 595, 835, 1169, 1190, 1297, 1670, 2338, 2594, 2839, 5678, 5845, 6485, 9079, 11690, 12970, 14195, 18158, 19873, 22049, 28390, 39746, 44098, 45395, 90790, 99365, 110245, 154343, 198730, 216599, 220490, 308686, 433198, 771715, 1082995, 1516193, 1543430, 2165990, 3032386, 3682183, 7364366, 7580965, 15161930, 18410915, 25775281, 36821830, 51550562, 128876405, 257752810]

約数ペア:

[(1, 257752810), (2, 128876405), (5, 51550562), (7, 36821830), (10, 25775281), (14, 18410915), (17, 15161930), (34, 7580965), (35, 7364366), (70, 3682183), (85, 3032386), (119, 2165990), (167, 1543430), (170, 1516193), (238, 1082995), (334, 771715), (595, 433198), (835, 308686), (1169, 220490), (1190, 216599), (1297, 198730), (1670, 154343), (2338, 110245), (2594, 99365), (2839, 90790), (5678, 45395), (5845, 44098), (6485, 39746), (9079, 28390), (11690, 22049), (12970, 19873), (14195, 18158)]