20194011875

素因数分解:

$5^4\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{12919}}^1$

素因数の和:13041

約数の個数: 40

約数和(自身を含む): 26275714080

約数和(自身を除く): 6081702205

約数列:

[1, 5, 25, 41, 61, 125, 205, 305, 625, 1025, 1525, 2501, 5125, 7625, 12505, 12919, 25625, 38125, 62525, 64595, 312625, 322975, 529679, 788059, 1563125, 1614875, 2648395, 3940295, 8074375, 13241975, 19701475, 32310419, 66209875, 98507375, 161552095, 331049375, 492536875, 807760475, 4038802375, 20194011875]

約数ペア:

[(1, 20194011875), (5, 4038802375), (25, 807760475), (41, 492536875), (61, 331049375), (125, 161552095), (205, 98507375), (305, 66209875), (625, 32310419), (1025, 19701475), (1525, 13241975), (2501, 8074375), (5125, 3940295), (7625, 2648395), (12505, 1614875), (12919, 1563125), (25625, 788059), (38125, 529679), (62525, 322975), (64595, 312625)]