398889440

素因数分解:

$2^5\times 5^1\times {\mathrm{1171}}^1\times {\mathrm{2129}}^1$

素因数の和:3315

約数の個数: 48

約数和(自身を含む): 943624080

約数和(自身を除く): 544734640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1171, 2129, 2342, 4258, 4684, 5855, 8516, 9368, 10645, 11710, 17032, 18736, 21290, 23420, 34064, 37472, 42580, 46840, 68128, 85160, 93680, 170320, 187360, 340640, 2493059, 4986118, 9972236, 12465295, 19944472, 24930590, 39888944, 49861180, 79777888, 99722360, 199444720, 398889440]

約数ペア:

[(1, 398889440), (2, 199444720), (4, 99722360), (5, 79777888), (8, 49861180), (10, 39888944), (16, 24930590), (20, 19944472), (32, 12465295), (40, 9972236), (80, 4986118), (160, 2493059), (1171, 340640), (2129, 187360), (2342, 170320), (4258, 93680), (4684, 85160), (5855, 68128), (8516, 46840), (9368, 42580), (10645, 37472), (11710, 34064), (17032, 23420), (18736, 21290)]