304480020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{390359}}^1$

素因数の和:390384

約数の個数: 48

約数和(自身を含む): 918126720

約数和(自身を除く): 613646700

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, 390359, 780718, 1171077, 1561436, 1951795, 2342154, 3903590, 4684308, 5074667, 5855385, 7807180, 10149334, 11710770, 15224001, 20298668, 23421540, 25373335, 30448002, 50746670, 60896004, 76120005, 101493340, 152240010, 304480020]

約数ペア:

[(1, 304480020), (2, 152240010), (3, 101493340), (4, 76120005), (5, 60896004), (6, 50746670), (10, 30448002), (12, 25373335), (13, 23421540), (15, 20298668), (20, 15224001), (26, 11710770), (30, 10149334), (39, 7807180), (52, 5855385), (60, 5074667), (65, 4684308), (78, 3903590), (130, 2342154), (156, 1951795), (195, 1561436), (260, 1171077), (390, 780718), (780, 390359)]