15445340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 33566400

約数和(自身を除く): 18121060

約数列:

[1, 2, 4, 5, 10, 20, 71, 73, 142, 146, 149, 284, 292, 298, 355, 365, 596, 710, 730, 745, 1420, 1460, 1490, 2980, 5183, 10366, 10579, 10877, 20732, 21158, 21754, 25915, 42316, 43508, 51830, 52895, 54385, 103660, 105790, 108770, 211580, 217540, 772267, 1544534, 3089068, 3861335, 7722670, 15445340]

約数ペア:

[(1, 15445340), (2, 7722670), (4, 3861335), (5, 3089068), (10, 1544534), (20, 772267), (71, 217540), (73, 211580), (142, 108770), (146, 105790), (149, 103660), (284, 54385), (292, 52895), (298, 51830), (355, 43508), (365, 42316), (596, 25915), (710, 21754), (730, 21158), (745, 20732), (1420, 10877), (1460, 10579), (1490, 10366), (2980, 5183)]