918711820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{75181}}^1$

素因数の和:75250

約数の個数: 48

約数和(自身を含む): 2121936768

約数和(自身を除く): 1203224948

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 2444, 3055, 6110, 12220, 75181, 150362, 300724, 375905, 751810, 977353, 1503620, 1954706, 3533507, 3909412, 4886765, 7067014, 9773530, 14134028, 17667535, 19547060, 35335070, 45935591, 70670140, 91871182, 183742364, 229677955, 459355910, 918711820]

約数ペア:

[(1, 918711820), (2, 459355910), (4, 229677955), (5, 183742364), (10, 91871182), (13, 70670140), (20, 45935591), (26, 35335070), (47, 19547060), (52, 17667535), (65, 14134028), (94, 9773530), (130, 7067014), (188, 4886765), (235, 3909412), (260, 3533507), (470, 1954706), (611, 1503620), (940, 977353), (1222, 751810), (2444, 375905), (3055, 300724), (6110, 150362), (12220, 75181)]