20346840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56519}}^1$

素因数の和:56536

約数の個数: 48

約数和(自身を含む): 66128400

約数和(自身を除く): 45781560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 56519, 113038, 169557, 226076, 282595, 339114, 452152, 508671, 565190, 678228, 847785, 1017342, 1130380, 1356456, 1695570, 2034684, 2260760, 2543355, 3391140, 4069368, 5086710, 6782280, 10173420, 20346840]

約数ペア:

[(1, 20346840), (2, 10173420), (3, 6782280), (4, 5086710), (5, 4069368), (6, 3391140), (8, 2543355), (9, 2260760), (10, 2034684), (12, 1695570), (15, 1356456), (18, 1130380), (20, 1017342), (24, 847785), (30, 678228), (36, 565190), (40, 508671), (45, 452152), (60, 339114), (72, 282595), (90, 226076), (120, 169557), (180, 113038), (360, 56519)]