30886940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{5381}}^1$

素因数の和:5438

約数の個数: 48

約数和(自身を含む): 75950784

約数和(自身を除く): 45063844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 5381, 5740, 10762, 21524, 26905, 37667, 53810, 75334, 107620, 150668, 188335, 220621, 376670, 441242, 753340, 882484, 1103105, 1544347, 2206210, 3088694, 4412420, 6177388, 7721735, 15443470, 30886940]

約数ペア:

[(1, 30886940), (2, 15443470), (4, 7721735), (5, 6177388), (7, 4412420), (10, 3088694), (14, 2206210), (20, 1544347), (28, 1103105), (35, 882484), (41, 753340), (70, 441242), (82, 376670), (140, 220621), (164, 188335), (205, 150668), (287, 107620), (410, 75334), (574, 53810), (820, 37667), (1148, 26905), (1435, 21524), (2870, 10762), (5381, 5740)]