20496420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{16267}}^1$

素因数の和:16289

約数の個数: 72

約数和(自身を含む): 71058624

約数和(自身を除く): 50562204

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 16267, 32534, 48801, 65068, 81335, 97602, 113869, 146403, 162670, 195204, 227738, 244005, 292806, 325340, 341607, 455476, 488010, 569345, 585612, 683214, 732015, 976020, 1024821, 1138690, 1366428, 1464030, 1708035, 2049642, 2277380, 2928060, 3416070, 4099284, 5124105, 6832140, 10248210, 20496420]

約数ペア:

[(1, 20496420), (2, 10248210), (3, 6832140), (4, 5124105), (5, 4099284), (6, 3416070), (7, 2928060), (9, 2277380), (10, 2049642), (12, 1708035), (14, 1464030), (15, 1366428), (18, 1138690), (20, 1024821), (21, 976020), (28, 732015), (30, 683214), (35, 585612), (36, 569345), (42, 488010), (45, 455476), (60, 341607), (63, 325340), (70, 292806), (84, 244005), (90, 227738), (105, 195204), (126, 162670), (140, 146403), (180, 113869), (210, 97602), (252, 81335), (315, 65068), (420, 48801), (630, 32534), (1260, 16267)]