12678520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{13781}}^1$

素因数の和:13815

約数の個数: 32

約数和(自身を含む): 29769120

約数和(自身を除く): 17090600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 13781, 27562, 55124, 68905, 110248, 137810, 275620, 316963, 551240, 633926, 1267852, 1584815, 2535704, 3169630, 6339260, 12678520]

約数ペア:

[(1, 12678520), (2, 6339260), (4, 3169630), (5, 2535704), (8, 1584815), (10, 1267852), (20, 633926), (23, 551240), (40, 316963), (46, 275620), (92, 137810), (115, 110248), (184, 68905), (230, 55124), (460, 27562), (920, 13781)]