155978980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{13241}}^1$

素因数の和:13300

約数の個数: 48

約数和(自身を含む): 355944960

約数和(自身を除く): 199965980

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2945, 5890, 11780, 13241, 26482, 52964, 66205, 132410, 251579, 264820, 410471, 503158, 820942, 1006316, 1257895, 1641884, 2052355, 2515790, 4104710, 5031580, 7798949, 8209420, 15597898, 31195796, 38994745, 77989490, 155978980]

約数ペア:

[(1, 155978980), (2, 77989490), (4, 38994745), (5, 31195796), (10, 15597898), (19, 8209420), (20, 7798949), (31, 5031580), (38, 4104710), (62, 2515790), (76, 2052355), (95, 1641884), (124, 1257895), (155, 1006316), (190, 820942), (310, 503158), (380, 410471), (589, 264820), (620, 251579), (1178, 132410), (2356, 66205), (2945, 52964), (5890, 26482), (11780, 13241)]