420090710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{18679}}^1$

素因数の和:18872

約数の個数: 32

約数和(自身を含む): 819080640

約数和(自身を除く): 398989930

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 173, 346, 865, 1730, 2249, 4498, 11245, 18679, 22490, 37358, 93395, 186790, 242827, 485654, 1214135, 2428270, 3231467, 6462934, 16157335, 32314670, 42009071, 84018142, 210045355, 420090710]

約数ペア:

[(1, 420090710), (2, 210045355), (5, 84018142), (10, 42009071), (13, 32314670), (26, 16157335), (65, 6462934), (130, 3231467), (173, 2428270), (346, 1214135), (865, 485654), (1730, 242827), (2249, 186790), (4498, 93395), (11245, 37358), (18679, 22490)]