666256812

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{17291}}^1$

素因数の和:17343

約数の個数: 72

約数和(自身を含む): 1772084160

約数和(自身を除く): 1105827348

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 169, 228, 247, 338, 494, 507, 676, 741, 988, 1014, 1482, 2028, 2964, 3211, 6422, 9633, 12844, 17291, 19266, 34582, 38532, 51873, 69164, 103746, 207492, 224783, 328529, 449566, 657058, 674349, 899132, 985587, 1314116, 1348698, 1971174, 2697396, 2922179, 3942348, 4270877, 5844358, 8541754, 8766537, 11688716, 12812631, 17083508, 17533074, 25625262, 35066148, 51250524, 55521401, 111042802, 166564203, 222085604, 333128406, 666256812]

約数ペア:

[(1, 666256812), (2, 333128406), (3, 222085604), (4, 166564203), (6, 111042802), (12, 55521401), (13, 51250524), (19, 35066148), (26, 25625262), (38, 17533074), (39, 17083508), (52, 12812631), (57, 11688716), (76, 8766537), (78, 8541754), (114, 5844358), (156, 4270877), (169, 3942348), (228, 2922179), (247, 2697396), (338, 1971174), (494, 1348698), (507, 1314116), (676, 985587), (741, 899132), (988, 674349), (1014, 657058), (1482, 449566), (2028, 328529), (2964, 224783), (3211, 207492), (6422, 103746), (9633, 69164), (12844, 51873), (17291, 38532), (19266, 34582)]