399016905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{52057}}^1$

素因数の和:52145

約数の個数: 32

約数和(自身を含む): 739640064

約数和(自身を除く): 340623159

約数列:

[1, 3, 5, 7, 15, 21, 35, 73, 105, 219, 365, 511, 1095, 1533, 2555, 7665, 52057, 156171, 260285, 364399, 780855, 1093197, 1821995, 3800161, 5465985, 11400483, 19000805, 26601127, 57002415, 79803381, 133005635, 399016905]

約数ペア:

[(1, 399016905), (3, 133005635), (5, 79803381), (7, 57002415), (15, 26601127), (21, 19000805), (35, 11400483), (73, 5465985), (105, 3800161), (219, 1821995), (365, 1093197), (511, 780855), (1095, 364399), (1533, 260285), (2555, 156171), (7665, 52057)]