395678140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{138349}}^1$

素因数の和:138382

約数の個数: 48

約数和(自身を含む): 976197600

約数和(自身を除く): 580519460

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 138349, 276698, 553396, 691745, 1383490, 1521839, 1798537, 2766980, 3043678, 3597074, 6087356, 7194148, 7609195, 8992685, 15218390, 17985370, 19783907, 30436780, 35970740, 39567814, 79135628, 98919535, 197839070, 395678140]

約数ペア:

[(1, 395678140), (2, 197839070), (4, 98919535), (5, 79135628), (10, 39567814), (11, 35970740), (13, 30436780), (20, 19783907), (22, 17985370), (26, 15218390), (44, 8992685), (52, 7609195), (55, 7194148), (65, 6087356), (110, 3597074), (130, 3043678), (143, 2766980), (220, 1798537), (260, 1521839), (286, 1383490), (572, 691745), (715, 553396), (1430, 276698), (2860, 138349)]