20245890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{421}}^1$

素因数の和:667

約数の個数: 64

約数和(自身を含む): 55906560

約数和(自身を除く): 35660670

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 229, 421, 458, 687, 842, 1145, 1263, 1374, 1603, 2105, 2290, 2526, 2947, 3206, 3435, 4210, 4809, 5894, 6315, 6870, 8015, 8841, 9618, 12630, 14735, 16030, 17682, 24045, 29470, 44205, 48090, 88410, 96409, 192818, 289227, 482045, 578454, 674863, 964090, 1349726, 1446135, 2024589, 2892270, 3374315, 4049178, 6748630, 10122945, 20245890]

約数ペア:

[(1, 20245890), (2, 10122945), (3, 6748630), (5, 4049178), (6, 3374315), (7, 2892270), (10, 2024589), (14, 1446135), (15, 1349726), (21, 964090), (30, 674863), (35, 578454), (42, 482045), (70, 289227), (105, 192818), (210, 96409), (229, 88410), (421, 48090), (458, 44205), (687, 29470), (842, 24045), (1145, 17682), (1263, 16030), (1374, 14735), (1603, 12630), (2105, 9618), (2290, 8841), (2526, 8015), (2947, 6870), (3206, 6315), (3435, 5894), (4210, 4809)]