20430390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{773}}^1\times {\mathrm{881}}^1$

素因数の和:1664

約数の個数: 32

約数和(自身を含む): 49152096

約数和(自身を除く): 28721706

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 773, 881, 1546, 1762, 2319, 2643, 3865, 4405, 4638, 5286, 7730, 8810, 11595, 13215, 23190, 26430, 681013, 1362026, 2043039, 3405065, 4086078, 6810130, 10215195, 20430390]

約数ペア:

[(1, 20430390), (2, 10215195), (3, 6810130), (5, 4086078), (6, 3405065), (10, 2043039), (15, 1362026), (30, 681013), (773, 26430), (881, 23190), (1546, 13215), (1762, 11595), (2319, 8810), (2643, 7730), (3865, 5286), (4405, 4638)]