2019788865

素因数分解:

$3^4\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{3863}}^1$

素因数の和:5171

約数の個数: 40

約数和(自身を含む): 3624401088

約数和(自身を除く): 1604612223

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1291, 3863, 3873, 6455, 11589, 11619, 19315, 19365, 34767, 34857, 57945, 58095, 104301, 104571, 173835, 174285, 312903, 521505, 522855, 1564515, 4987133, 14961399, 24935665, 44884197, 74806995, 134652591, 224420985, 403957773, 673262955, 2019788865]

約数ペア:

[(1, 2019788865), (3, 673262955), (5, 403957773), (9, 224420985), (15, 134652591), (27, 74806995), (45, 44884197), (81, 24935665), (135, 14961399), (405, 4987133), (1291, 1564515), (3863, 522855), (3873, 521505), (6455, 312903), (11589, 174285), (11619, 173835), (19315, 104571), (19365, 104301), (34767, 58095), (34857, 57945)]