79920640

素因数分解:

$2^9\times 5^1\times {\mathrm{31219}}^1$

素因数の和:31242

約数の個数: 40

約数和(自身を含む): 191628360

約数和(自身を除く): 111707720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 31219, 62438, 124876, 156095, 249752, 312190, 499504, 624380, 999008, 1248760, 1998016, 2497520, 3996032, 4995040, 7992064, 9990080, 15984128, 19980160, 39960320, 79920640]

約数ペア:

[(1, 79920640), (2, 39960320), (4, 19980160), (5, 15984128), (8, 9990080), (10, 7992064), (16, 4995040), (20, 3996032), (32, 2497520), (40, 1998016), (64, 1248760), (80, 999008), (128, 624380), (160, 499504), (256, 312190), (320, 249752), (512, 156095), (640, 124876), (1280, 62438), (2560, 31219)]