25973320

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1013}}^1$

素因数の和:1665

約数の個数: 32

約数和(自身を含む): 58588920

約数和(自身を除く): 32615600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1013, 1282, 2026, 2564, 3205, 4052, 5065, 5128, 6410, 8104, 10130, 12820, 20260, 25640, 40520, 649333, 1298666, 2597332, 3246665, 5194664, 6493330, 12986660, 25973320]

約数ペア:

[(1, 25973320), (2, 12986660), (4, 6493330), (5, 5194664), (8, 3246665), (10, 2597332), (20, 1298666), (40, 649333), (641, 40520), (1013, 25640), (1282, 20260), (2026, 12820), (2564, 10130), (3205, 8104), (4052, 6410), (5065, 5128)]