18112920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{21563}}^1$

素因数の和:21584

約数の個数: 64

約数和(自身を含む): 62104320

約数和(自身を除く): 43991400

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, 21563, 43126, 64689, 86252, 107815, 129378, 150941, 172504, 215630, 258756, 301882, 323445, 431260, 452823, 517512, 603764, 646890, 754705, 862520, 905646, 1207528, 1293780, 1509410, 1811292, 2264115, 2587560, 3018820, 3622584, 4528230, 6037640, 9056460, 18112920]

約数ペア:

[(1, 18112920), (2, 9056460), (3, 6037640), (4, 4528230), (5, 3622584), (6, 3018820), (7, 2587560), (8, 2264115), (10, 1811292), (12, 1509410), (14, 1293780), (15, 1207528), (20, 905646), (21, 862520), (24, 754705), (28, 646890), (30, 603764), (35, 517512), (40, 452823), (42, 431260), (56, 323445), (60, 301882), (70, 258756), (84, 215630), (105, 172504), (120, 150941), (140, 129378), (168, 107815), (210, 86252), (280, 64689), (420, 43126), (840, 21563)]