15991425

素因数分解:

$3^4\times 5^2\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:224

約数の個数: 60

約数和(自身を含む): 30383100

約数和(自身を除く): 14391675

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 53, 75, 81, 135, 149, 159, 225, 265, 405, 447, 477, 675, 745, 795, 1325, 1341, 1431, 2025, 2235, 2385, 3725, 3975, 4023, 4293, 6705, 7155, 7897, 11175, 11925, 12069, 20115, 21465, 23691, 33525, 35775, 39485, 60345, 71073, 100575, 107325, 118455, 197425, 213219, 301725, 355365, 592275, 639657, 1066095, 1776825, 3198285, 5330475, 15991425]

約数ペア:

[(1, 15991425), (3, 5330475), (5, 3198285), (9, 1776825), (15, 1066095), (25, 639657), (27, 592275), (45, 355365), (53, 301725), (75, 213219), (81, 197425), (135, 118455), (149, 107325), (159, 100575), (225, 71073), (265, 60345), (405, 39485), (447, 35775), (477, 33525), (675, 23691), (745, 21465), (795, 20115), (1325, 12069), (1341, 11925), (1431, 11175), (2025, 7897), (2235, 7155), (2385, 6705), (3725, 4293), (3975, 4023)]