7961980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{271}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 18232704

約数和(自身を除く): 10270724

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 226, 260, 271, 452, 542, 565, 1084, 1130, 1355, 1469, 2260, 2710, 2938, 3523, 5420, 5876, 7046, 7345, 14092, 14690, 17615, 29380, 30623, 35230, 61246, 70460, 122492, 153115, 306230, 398099, 612460, 796198, 1592396, 1990495, 3980990, 7961980]

約数ペア:

[(1, 7961980), (2, 3980990), (4, 1990495), (5, 1592396), (10, 796198), (13, 612460), (20, 398099), (26, 306230), (52, 153115), (65, 122492), (113, 70460), (130, 61246), (226, 35230), (260, 30623), (271, 29380), (452, 17615), (542, 14690), (565, 14092), (1084, 7345), (1130, 7046), (1355, 5876), (1469, 5420), (2260, 3523), (2710, 2938)]