156951234640

素因数分解:

$2^4\times 5^1\times {\mathrm{21997}}^1\times {\mathrm{89189}}^1$

素因数の和:111199

約数の個数: 40

約数和(自身を含む): 364932301320

約数和(自身を除く): 207981066680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 21997, 43994, 87988, 89189, 109985, 175976, 178378, 219970, 351952, 356756, 439940, 445945, 713512, 879880, 891890, 1427024, 1759760, 1783780, 3567560, 7135120, 1961890433, 3923780866, 7847561732, 9809452165, 15695123464, 19618904330, 31390246928, 39237808660, 78475617320, 156951234640]

約数ペア:

[(1, 156951234640), (2, 78475617320), (4, 39237808660), (5, 31390246928), (8, 19618904330), (10, 15695123464), (16, 9809452165), (20, 7847561732), (40, 3923780866), (80, 1961890433), (21997, 7135120), (43994, 3567560), (87988, 1783780), (89189, 1759760), (109985, 1427024), (175976, 891890), (178378, 879880), (219970, 713512), (351952, 445945), (356756, 439940)]