348566920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{670321}}^1$

素因数の和:670345

約数の個数: 32

約数和(自身を含む): 844605720

約数和(自身を除く): 496038800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 670321, 1340642, 2681284, 3351605, 5362568, 6703210, 8714173, 13406420, 17428346, 26812840, 34856692, 43570865, 69713384, 87141730, 174283460, 348566920]

約数ペア:

[(1, 348566920), (2, 174283460), (4, 87141730), (5, 69713384), (8, 43570865), (10, 34856692), (13, 26812840), (20, 17428346), (26, 13406420), (40, 8714173), (52, 6703210), (65, 5362568), (104, 3351605), (130, 2681284), (260, 1340642), (520, 670321)]