15943980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20441}}^1$

素因数の和:20466

約数の個数: 48

約数和(自身を含む): 48079584

約数和(自身を除く): 32135604

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 20441, 40882, 61323, 81764, 102205, 122646, 204410, 245292, 265733, 306615, 408820, 531466, 613230, 797199, 1062932, 1226460, 1328665, 1594398, 2657330, 3188796, 3985995, 5314660, 7971990, 15943980]

約数ペア:

[(1, 15943980), (2, 7971990), (3, 5314660), (4, 3985995), (5, 3188796), (6, 2657330), (10, 1594398), (12, 1328665), (13, 1226460), (15, 1062932), (20, 797199), (26, 613230), (30, 531466), (39, 408820), (52, 306615), (60, 265733), (65, 245292), (78, 204410), (130, 122646), (156, 102205), (195, 81764), (260, 61323), (390, 40882), (780, 20441)]