19796800

素因数分解:

$2^6\times 5^2\times {\mathrm{12373}}^1$

素因数の和:12395

約数の個数: 42

約数和(自身を含む): 48716438

約数和(自身を除く): 28919638

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 12373, 24746, 49492, 61865, 98984, 123730, 197968, 247460, 309325, 395936, 494920, 618650, 791872, 989840, 1237300, 1979680, 2474600, 3959360, 4949200, 9898400, 19796800]

約数ペア:

[(1, 19796800), (2, 9898400), (4, 4949200), (5, 3959360), (8, 2474600), (10, 1979680), (16, 1237300), (20, 989840), (25, 791872), (32, 618650), (40, 494920), (50, 395936), (64, 309325), (80, 247460), (100, 197968), (160, 123730), (200, 98984), (320, 61865), (400, 49492), (800, 24746), (1600, 12373)]