520065780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{666751}}^1$

素因数の和:666776

約数の個数: 48

約数和(自身を含む): 1568200704

約数和(自身を除く): 1048134924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 666751, 1333502, 2000253, 2667004, 3333755, 4000506, 6667510, 8001012, 8667763, 10001265, 13335020, 17335526, 20002530, 26003289, 34671052, 40005060, 43338815, 52006578, 86677630, 104013156, 130016445, 173355260, 260032890, 520065780]

約数ペア:

[(1, 520065780), (2, 260032890), (3, 173355260), (4, 130016445), (5, 104013156), (6, 86677630), (10, 52006578), (12, 43338815), (13, 40005060), (15, 34671052), (20, 26003289), (26, 20002530), (30, 17335526), (39, 13335020), (52, 10001265), (60, 8667763), (65, 8001012), (78, 6667510), (130, 4000506), (156, 3333755), (195, 2667004), (260, 2000253), (390, 1333502), (780, 666751)]