28283440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8623}}^1$

素因数の和:8677

約数の個数: 40

約数和(自身を含む): 67370688

約数和(自身を除く): 39087248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 8623, 17246, 34492, 43115, 68984, 86230, 137968, 172460, 344920, 353543, 689840, 707086, 1414172, 1767715, 2828344, 3535430, 5656688, 7070860, 14141720, 28283440]

約数ペア:

[(1, 28283440), (2, 14141720), (4, 7070860), (5, 5656688), (8, 3535430), (10, 2828344), (16, 1767715), (20, 1414172), (40, 707086), (41, 689840), (80, 353543), (82, 344920), (164, 172460), (205, 137968), (328, 86230), (410, 68984), (656, 43115), (820, 34492), (1640, 17246), (3280, 8623)]