20733660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{503}}^1$

素因数の和:747

約数の個数: 72

約数和(自身を含む): 63292320

約数和(自身を除く): 42558660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 229, 458, 503, 687, 916, 1006, 1145, 1374, 1509, 2012, 2061, 2290, 2515, 2748, 3018, 3435, 4122, 4527, 4580, 5030, 6036, 6870, 7545, 8244, 9054, 10060, 10305, 13740, 15090, 18108, 20610, 22635, 30180, 41220, 45270, 90540, 115187, 230374, 345561, 460748, 575935, 691122, 1036683, 1151870, 1382244, 1727805, 2073366, 2303740, 3455610, 4146732, 5183415, 6911220, 10366830, 20733660]

約数ペア:

[(1, 20733660), (2, 10366830), (3, 6911220), (4, 5183415), (5, 4146732), (6, 3455610), (9, 2303740), (10, 2073366), (12, 1727805), (15, 1382244), (18, 1151870), (20, 1036683), (30, 691122), (36, 575935), (45, 460748), (60, 345561), (90, 230374), (180, 115187), (229, 90540), (458, 45270), (503, 41220), (687, 30180), (916, 22635), (1006, 20610), (1145, 18108), (1374, 15090), (1509, 13740), (2012, 10305), (2061, 10060), (2290, 9054), (2515, 8244), (2748, 7545), (3018, 6870), (3435, 6036), (4122, 5030), (4527, 4580)]