390650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{601}}^1$

素因数の和:626

約数の個数: 24

約数和(自身を含む): 783804

約数和(自身を除く): 393154

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 601, 650, 1202, 3005, 6010, 7813, 15025, 15626, 30050, 39065, 78130, 195325, 390650]

約数ペア:

[(1, 390650), (2, 195325), (5, 78130), (10, 39065), (13, 30050), (25, 15626), (26, 15025), (50, 7813), (65, 6010), (130, 3005), (325, 1202), (601, 650)]