20453025

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 36823040

約数和(自身を除く): 16370015

約数列:

[1, 3, 5, 15, 19, 25, 31, 57, 75, 93, 95, 155, 285, 463, 465, 475, 589, 775, 1389, 1425, 1767, 2315, 2325, 2945, 6945, 8797, 8835, 11575, 14353, 14725, 26391, 34725, 43059, 43985, 44175, 71765, 131955, 215295, 219925, 272707, 358825, 659775, 818121, 1076475, 1363535, 4090605, 6817675, 20453025]

約数ペア:

[(1, 20453025), (3, 6817675), (5, 4090605), (15, 1363535), (19, 1076475), (25, 818121), (31, 659775), (57, 358825), (75, 272707), (93, 219925), (95, 215295), (155, 131955), (285, 71765), (463, 44175), (465, 43985), (475, 43059), (589, 34725), (775, 26391), (1389, 14725), (1425, 14353), (1767, 11575), (2315, 8835), (2325, 8797), (2945, 6945)]