397454408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{8867}}^1$

素因数の和:9317

約数の個数: 32

約数和(自身を含む): 804504960

約数和(自身を除く): 407050552

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 431, 862, 1724, 3448, 5603, 8867, 11206, 17734, 22412, 35468, 44824, 70936, 115271, 230542, 461084, 922168, 3821677, 7643354, 15286708, 30573416, 49681801, 99363602, 198727204, 397454408]

約数ペア:

[(1, 397454408), (2, 198727204), (4, 99363602), (8, 49681801), (13, 30573416), (26, 15286708), (52, 7643354), (104, 3821677), (431, 922168), (862, 461084), (1724, 230542), (3448, 115271), (5603, 70936), (8867, 44824), (11206, 35468), (17734, 22412)]