19831175

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 31664640

約数和(自身を除く): 11833465

約数列:

[1, 5, 7, 13, 23, 25, 35, 65, 91, 115, 161, 175, 299, 325, 379, 455, 575, 805, 1495, 1895, 2093, 2275, 2653, 4025, 4927, 7475, 8717, 9475, 10465, 13265, 24635, 34489, 43585, 52325, 61019, 66325, 113321, 123175, 172445, 217925, 305095, 566605, 793247, 862225, 1525475, 2833025, 3966235, 19831175]

約数ペア:

[(1, 19831175), (5, 3966235), (7, 2833025), (13, 1525475), (23, 862225), (25, 793247), (35, 566605), (65, 305095), (91, 217925), (115, 172445), (161, 123175), (175, 113321), (299, 66325), (325, 61019), (379, 52325), (455, 43585), (575, 34489), (805, 24635), (1495, 13265), (1895, 10465), (2093, 9475), (2275, 8717), (2653, 7475), (4025, 4927)]