145440280

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{13417}}^1$

素因数の和:13699

約数の個数: 32

約数和(自身を含む): 328472640

約数和(自身を除く): 183032360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 10840, 13417, 26834, 53668, 67085, 107336, 134170, 268340, 536680, 3636007, 7272014, 14544028, 18180035, 29088056, 36360070, 72720140, 145440280]

約数ペア:

[(1, 145440280), (2, 72720140), (4, 36360070), (5, 29088056), (8, 18180035), (10, 14544028), (20, 7272014), (40, 3636007), (271, 536680), (542, 268340), (1084, 134170), (1355, 107336), (2168, 67085), (2710, 53668), (5420, 26834), (10840, 13417)]