661170765

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{353}}^1$

素因数の和:534

約数の個数: 64

約数和(自身を含む): 1137784320

約数和(自身を除く): 476613555

約数列:

[1, 3, 5, 15, 23, 61, 69, 89, 115, 183, 267, 305, 345, 353, 445, 915, 1059, 1335, 1403, 1765, 2047, 4209, 5295, 5429, 6141, 7015, 8119, 10235, 16287, 21045, 21533, 24357, 27145, 30705, 31417, 40595, 64599, 81435, 94251, 107665, 121785, 124867, 157085, 322995, 374601, 471255, 495259, 624335, 722591, 1485777, 1873005, 1916437, 2167773, 2476295, 3612955, 5749311, 7428885, 9582185, 10838865, 28746555, 44078051, 132234153, 220390255, 661170765]

約数ペア:

[(1, 661170765), (3, 220390255), (5, 132234153), (15, 44078051), (23, 28746555), (61, 10838865), (69, 9582185), (89, 7428885), (115, 5749311), (183, 3612955), (267, 2476295), (305, 2167773), (345, 1916437), (353, 1873005), (445, 1485777), (915, 722591), (1059, 624335), (1335, 495259), (1403, 471255), (1765, 374601), (2047, 322995), (4209, 157085), (5295, 124867), (5429, 121785), (6141, 107665), (7015, 94251), (8119, 81435), (10235, 64599), (16287, 40595), (21045, 31417), (21533, 30705), (24357, 27145)]