199869875

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{661}}^1$

素因数の和:776

約数の個数: 32

約数和(自身を含む): 260245440

約数和(自身を除く): 60375565

約数列:

[1, 5, 25, 41, 59, 125, 205, 295, 661, 1025, 1475, 2419, 3305, 5125, 7375, 12095, 16525, 27101, 38999, 60475, 82625, 135505, 194995, 302375, 677525, 974975, 1598959, 3387625, 4874875, 7994795, 39973975, 199869875]

約数ペア:

[(1, 199869875), (5, 39973975), (25, 7994795), (41, 4874875), (59, 3387625), (125, 1598959), (205, 974975), (295, 677525), (661, 302375), (1025, 194995), (1475, 135505), (2419, 82625), (3305, 60475), (5125, 38999), (7375, 27101), (12095, 16525)]