19411240

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7243}}^1$

素因数の和:7321

約数の個数: 32

約数和(自身を含む): 44333280

約数和(自身を除く): 24922040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 7243, 14486, 28972, 36215, 57944, 72430, 144860, 289720, 485281, 970562, 1941124, 2426405, 3882248, 4852810, 9705620, 19411240]

約数ペア:

[(1, 19411240), (2, 9705620), (4, 4852810), (5, 3882248), (8, 2426405), (10, 1941124), (20, 970562), (40, 485281), (67, 289720), (134, 144860), (268, 72430), (335, 57944), (536, 36215), (670, 28972), (1340, 14486), (2680, 7243)]