18530520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{503}}^1$

素因数の和:824

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 37353000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 307, 503, 614, 921, 1006, 1228, 1509, 1535, 1842, 2012, 2456, 2515, 3018, 3070, 3684, 4024, 4605, 5030, 6036, 6140, 7368, 7545, 9210, 10060, 12072, 12280, 15090, 18420, 20120, 30180, 36840, 60360, 154421, 308842, 463263, 617684, 772105, 926526, 1235368, 1544210, 1853052, 2316315, 3088420, 3706104, 4632630, 6176840, 9265260, 18530520]

約数ペア:

[(1, 18530520), (2, 9265260), (3, 6176840), (4, 4632630), (5, 3706104), (6, 3088420), (8, 2316315), (10, 1853052), (12, 1544210), (15, 1235368), (20, 926526), (24, 772105), (30, 617684), (40, 463263), (60, 308842), (120, 154421), (307, 60360), (503, 36840), (614, 30180), (921, 20120), (1006, 18420), (1228, 15090), (1509, 12280), (1535, 12072), (1842, 10060), (2012, 9210), (2456, 7545), (2515, 7368), (3018, 6140), (3070, 6036), (3684, 5030), (4024, 4605)]