20600515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 28619136

約数和(自身を除く): 8018621

約数列:

[1, 5, 13, 17, 65, 85, 103, 181, 221, 515, 905, 1105, 1339, 1751, 2353, 3077, 6695, 8755, 11765, 15385, 18643, 22763, 40001, 93215, 113815, 200005, 242359, 316931, 1211795, 1584655, 4120103, 20600515]

約数ペア:

[(1, 20600515), (5, 4120103), (13, 1584655), (17, 1211795), (65, 316931), (85, 242359), (103, 200005), (181, 113815), (221, 93215), (515, 40001), (905, 22763), (1105, 18643), (1339, 15385), (1751, 11765), (2353, 8755), (3077, 6695)]