129782320

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 311176512

約数和(自身を除く): 181394192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 73, 80, 142, 146, 284, 292, 313, 355, 365, 568, 584, 626, 710, 730, 1136, 1168, 1252, 1420, 1460, 1565, 2504, 2840, 2920, 3130, 5008, 5183, 5680, 5840, 6260, 10366, 12520, 20732, 22223, 22849, 25040, 25915, 41464, 44446, 45698, 51830, 82928, 88892, 91396, 103660, 111115, 114245, 177784, 182792, 207320, 222230, 228490, 355568, 365584, 414640, 444460, 456980, 888920, 913960, 1622279, 1777840, 1827920, 3244558, 6489116, 8111395, 12978232, 16222790, 25956464, 32445580, 64891160, 129782320]

約数ペア:

[(1, 129782320), (2, 64891160), (4, 32445580), (5, 25956464), (8, 16222790), (10, 12978232), (16, 8111395), (20, 6489116), (40, 3244558), (71, 1827920), (73, 1777840), (80, 1622279), (142, 913960), (146, 888920), (284, 456980), (292, 444460), (313, 414640), (355, 365584), (365, 355568), (568, 228490), (584, 222230), (626, 207320), (710, 182792), (730, 177784), (1136, 114245), (1168, 111115), (1252, 103660), (1420, 91396), (1460, 88892), (1565, 82928), (2504, 51830), (2840, 45698), (2920, 44446), (3130, 41464), (5008, 25915), (5183, 25040), (5680, 22849), (5840, 22223), (6260, 20732), (10366, 12520)]