31505580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{457}}^1$

素因数の和:855

約数の個数: 72

約数和(自身を含む): 96026112

約数和(自身を除く): 64520532

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 383, 457, 766, 914, 1149, 1371, 1532, 1828, 1915, 2285, 2298, 2742, 3447, 3830, 4113, 4570, 4596, 5484, 5745, 6855, 6894, 7660, 8226, 9140, 11490, 13710, 13788, 16452, 17235, 20565, 22980, 27420, 34470, 41130, 68940, 82260, 175031, 350062, 525093, 700124, 875155, 1050186, 1575279, 1750310, 2100372, 2625465, 3150558, 3500620, 5250930, 6301116, 7876395, 10501860, 15752790, 31505580]

約数ペア:

[(1, 31505580), (2, 15752790), (3, 10501860), (4, 7876395), (5, 6301116), (6, 5250930), (9, 3500620), (10, 3150558), (12, 2625465), (15, 2100372), (18, 1750310), (20, 1575279), (30, 1050186), (36, 875155), (45, 700124), (60, 525093), (90, 350062), (180, 175031), (383, 82260), (457, 68940), (766, 41130), (914, 34470), (1149, 27420), (1371, 22980), (1532, 20565), (1828, 17235), (1915, 16452), (2285, 13788), (2298, 13710), (2742, 11490), (3447, 9140), (3830, 8226), (4113, 7660), (4570, 6894), (4596, 6855), (5484, 5745)]