19278140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5987}}^1$

素因数の和:6026

約数の個数: 48

約数和(自身を含む): 48287232

約数和(自身を除く): 29009092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 5987, 11974, 23948, 29935, 41909, 59870, 83818, 119740, 137701, 167636, 209545, 275402, 419090, 550804, 688505, 838180, 963907, 1377010, 1927814, 2754020, 3855628, 4819535, 9639070, 19278140]

約数ペア:

[(1, 19278140), (2, 9639070), (4, 4819535), (5, 3855628), (7, 2754020), (10, 1927814), (14, 1377010), (20, 963907), (23, 838180), (28, 688505), (35, 550804), (46, 419090), (70, 275402), (92, 209545), (115, 167636), (140, 137701), (161, 119740), (230, 83818), (322, 59870), (460, 41909), (644, 29935), (805, 23948), (1610, 11974), (3220, 5987)]