20552580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{503}}^1$

素因数の和:745

約数の個数: 72

約数和(自身を含む): 62741952

約数和(自身を除く): 42189372

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 227, 454, 503, 681, 908, 1006, 1135, 1362, 1509, 2012, 2043, 2270, 2515, 2724, 3018, 3405, 4086, 4527, 4540, 5030, 6036, 6810, 7545, 8172, 9054, 10060, 10215, 13620, 15090, 18108, 20430, 22635, 30180, 40860, 45270, 90540, 114181, 228362, 342543, 456724, 570905, 685086, 1027629, 1141810, 1370172, 1712715, 2055258, 2283620, 3425430, 4110516, 5138145, 6850860, 10276290, 20552580]

約数ペア:

[(1, 20552580), (2, 10276290), (3, 6850860), (4, 5138145), (5, 4110516), (6, 3425430), (9, 2283620), (10, 2055258), (12, 1712715), (15, 1370172), (18, 1141810), (20, 1027629), (30, 685086), (36, 570905), (45, 456724), (60, 342543), (90, 228362), (180, 114181), (227, 90540), (454, 45270), (503, 40860), (681, 30180), (908, 22635), (1006, 20430), (1135, 18108), (1362, 15090), (1509, 13620), (2012, 10215), (2043, 10060), (2270, 9054), (2515, 8172), (2724, 7545), (3018, 6810), (3405, 6036), (4086, 5030), (4527, 4540)]