18445140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{14639}}^1$

素因数の和:14661

約数の個数: 72

約数和(自身を含む): 63947520

約数和(自身を除く): 45502380

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, 14639, 29278, 43917, 58556, 73195, 87834, 102473, 131751, 146390, 175668, 204946, 219585, 263502, 292780, 307419, 409892, 439170, 512365, 527004, 614838, 658755, 878340, 922257, 1024730, 1229676, 1317510, 1537095, 1844514, 2049460, 2635020, 3074190, 3689028, 4611285, 6148380, 9222570, 18445140]

約数ペア:

[(1, 18445140), (2, 9222570), (3, 6148380), (4, 4611285), (5, 3689028), (6, 3074190), (7, 2635020), (9, 2049460), (10, 1844514), (12, 1537095), (14, 1317510), (15, 1229676), (18, 1024730), (20, 922257), (21, 878340), (28, 658755), (30, 614838), (35, 527004), (36, 512365), (42, 439170), (45, 409892), (60, 307419), (63, 292780), (70, 263502), (84, 219585), (90, 204946), (105, 175668), (126, 146390), (140, 131751), (180, 102473), (210, 87834), (252, 73195), (315, 58556), (420, 43917), (630, 29278), (1260, 14639)]