20430450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{83}}^1\times {\mathrm{547}}^1$

素因数の和:648

約数の個数: 72

約数和(自身を含む): 55652688

約数和(自身を除く): 35222238

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 83, 90, 150, 166, 225, 249, 415, 450, 498, 547, 747, 830, 1094, 1245, 1494, 1641, 2075, 2490, 2735, 3282, 3735, 4150, 4923, 5470, 6225, 7470, 8205, 9846, 12450, 13675, 16410, 18675, 24615, 27350, 37350, 41025, 45401, 49230, 82050, 90802, 123075, 136203, 227005, 246150, 272406, 408609, 454010, 681015, 817218, 1135025, 1362030, 2043045, 2270050, 3405075, 4086090, 6810150, 10215225, 20430450]

約数ペア:

[(1, 20430450), (2, 10215225), (3, 6810150), (5, 4086090), (6, 3405075), (9, 2270050), (10, 2043045), (15, 1362030), (18, 1135025), (25, 817218), (30, 681015), (45, 454010), (50, 408609), (75, 272406), (83, 246150), (90, 227005), (150, 136203), (166, 123075), (225, 90802), (249, 82050), (415, 49230), (450, 45401), (498, 41025), (547, 37350), (747, 27350), (830, 24615), (1094, 18675), (1245, 16410), (1494, 13675), (1641, 12450), (2075, 9846), (2490, 8205), (2735, 7470), (3282, 6225), (3735, 5470), (4150, 4923)]