280521428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{787}}^1\times {\mathrm{8101}}^1$

素因数の和:8903

約数の個数: 24

約数和(自身を含む): 536287584

約数和(自身を除く): 255766156

約数列:

[1, 2, 4, 11, 22, 44, 787, 1574, 3148, 8101, 8657, 16202, 17314, 32404, 34628, 89111, 178222, 356444, 6375487, 12750974, 25501948, 70130357, 140260714, 280521428]

約数ペア:

[(1, 280521428), (2, 140260714), (4, 70130357), (11, 25501948), (22, 12750974), (44, 6375487), (787, 356444), (1574, 178222), (3148, 89111), (8101, 34628), (8657, 32404), (16202, 17314)]