12988891990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19687}}^1\times {\mathrm{3881}}^1$

素因数の和:23592

約数の個数: 32

約数和(自身を含む): 24762936384

約数和(自身を除く): 11774044394

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 3881, 7762, 19405, 19687, 38810, 39374, 65977, 98435, 131954, 196870, 329885, 334679, 659770, 669358, 1673395, 3346790, 76405247, 152810494, 382026235, 764052470, 1298889199, 2597778398, 6494445995, 12988891990]

約数ペア:

[(1, 12988891990), (2, 6494445995), (5, 2597778398), (10, 1298889199), (17, 764052470), (34, 382026235), (85, 152810494), (170, 76405247), (3881, 3346790), (7762, 1673395), (19405, 669358), (19687, 659770), (38810, 334679), (39374, 329885), (65977, 196870), (98435, 131954)]