20077700

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 45934560

約数和(自身を除く): 25856860

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 59, 82, 83, 100, 118, 164, 166, 205, 236, 295, 332, 410, 415, 590, 820, 830, 1025, 1180, 1475, 1660, 2050, 2075, 2419, 2950, 3403, 4100, 4150, 4838, 4897, 5900, 6806, 8300, 9676, 9794, 12095, 13612, 17015, 19588, 24190, 24485, 34030, 48380, 48970, 60475, 68060, 85075, 97940, 120950, 122425, 170150, 200777, 241900, 244850, 340300, 401554, 489700, 803108, 1003885, 2007770, 4015540, 5019425, 10038850, 20077700]

約数ペア:

[(1, 20077700), (2, 10038850), (4, 5019425), (5, 4015540), (10, 2007770), (20, 1003885), (25, 803108), (41, 489700), (50, 401554), (59, 340300), (82, 244850), (83, 241900), (100, 200777), (118, 170150), (164, 122425), (166, 120950), (205, 97940), (236, 85075), (295, 68060), (332, 60475), (410, 48970), (415, 48380), (590, 34030), (820, 24485), (830, 24190), (1025, 19588), (1180, 17015), (1475, 13612), (1660, 12095), (2050, 9794), (2075, 9676), (2419, 8300), (2950, 6806), (3403, 5900), (4100, 4897), (4150, 4838)]