64891160

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:468

約数の個数: 64

約数和(自身を含む): 150569280

約数和(自身を除く): 85678120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 73, 142, 146, 284, 292, 313, 355, 365, 568, 584, 626, 710, 730, 1252, 1420, 1460, 1565, 2504, 2840, 2920, 3130, 5183, 6260, 10366, 12520, 20732, 22223, 22849, 25915, 41464, 44446, 45698, 51830, 88892, 91396, 103660, 111115, 114245, 177784, 182792, 207320, 222230, 228490, 444460, 456980, 888920, 913960, 1622279, 3244558, 6489116, 8111395, 12978232, 16222790, 32445580, 64891160]

約数ペア:

[(1, 64891160), (2, 32445580), (4, 16222790), (5, 12978232), (8, 8111395), (10, 6489116), (20, 3244558), (40, 1622279), (71, 913960), (73, 888920), (142, 456980), (146, 444460), (284, 228490), (292, 222230), (313, 207320), (355, 182792), (365, 177784), (568, 114245), (584, 111115), (626, 103660), (710, 91396), (730, 88892), (1252, 51830), (1420, 45698), (1460, 44446), (1565, 41464), (2504, 25915), (2840, 22849), (2920, 22223), (3130, 20732), (5183, 12520), (6260, 10366)]