18638760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{22189}}^1$

素因数の和:22210

約数の個数: 64

約数和(自身を含む): 63907200

約数和(自身を除く): 45268440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 22189, 44378, 66567, 88756, 110945, 133134, 155323, 177512, 221890, 266268, 310646, 332835, 443780, 465969, 532536, 621292, 665670, 776615, 887560, 931938, 1242584, 1331340, 1553230, 1863876, 2329845, 2662680, 3106460, 3727752, 4659690, 6212920, 9319380, 18638760]

約数ペア:

[(1, 18638760), (2, 9319380), (3, 6212920), (4, 4659690), (5, 3727752), (6, 3106460), (7, 2662680), (8, 2329845), (10, 1863876), (12, 1553230), (14, 1331340), (15, 1242584), (20, 931938), (21, 887560), (24, 776615), (28, 665670), (30, 621292), (35, 532536), (40, 465969), (42, 443780), (56, 332835), (60, 310646), (70, 266268), (84, 221890), (105, 177512), (120, 155323), (140, 133134), (168, 110945), (210, 88756), (280, 66567), (420, 44378), (840, 22189)]