20758590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{877}}^1$

素因数の和:1153

約数の個数: 48

約数和(自身を含む): 54239328

約数和(自身を除く): 33480738

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 263, 526, 789, 877, 1315, 1578, 1754, 2367, 2630, 2631, 3945, 4385, 4734, 5262, 7890, 7893, 8770, 11835, 13155, 15786, 23670, 26310, 39465, 78930, 230651, 461302, 691953, 1153255, 1383906, 2075859, 2306510, 3459765, 4151718, 6919530, 10379295, 20758590]

約数ペア:

[(1, 20758590), (2, 10379295), (3, 6919530), (5, 4151718), (6, 3459765), (9, 2306510), (10, 2075859), (15, 1383906), (18, 1153255), (30, 691953), (45, 461302), (90, 230651), (263, 78930), (526, 39465), (789, 26310), (877, 23670), (1315, 15786), (1578, 13155), (1754, 11835), (2367, 8770), (2630, 7893), (2631, 7890), (3945, 5262), (4385, 4734)]