131312895

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{9403}}^1$

素因数の和:9444

約数の個数: 48

約数和(自身を含む): 257293440

約数和(自身を除く): 125980545

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1995, 2793, 4655, 9403, 13965, 28209, 47015, 65821, 141045, 178657, 197463, 329105, 460747, 535971, 893285, 987315, 1250599, 1382241, 2303735, 2679855, 3751797, 6252995, 6911205, 8754193, 18758985, 26262579, 43770965, 131312895]

約数ペア:

[(1, 131312895), (3, 43770965), (5, 26262579), (7, 18758985), (15, 8754193), (19, 6911205), (21, 6252995), (35, 3751797), (49, 2679855), (57, 2303735), (95, 1382241), (105, 1250599), (133, 987315), (147, 893285), (245, 535971), (285, 460747), (399, 329105), (665, 197463), (735, 178657), (931, 141045), (1995, 65821), (2793, 47015), (4655, 28209), (9403, 13965)]