80320640

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3061}}^1$

素因数の和:3121

約数の個数: 64

約数和(自身を含む): 196764120

約数和(自身を除く): 116443480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 320, 328, 410, 640, 656, 820, 1312, 1640, 2624, 3061, 3280, 5248, 6122, 6560, 12244, 13120, 15305, 24488, 26240, 30610, 48976, 61220, 97952, 122440, 125501, 195904, 244880, 251002, 391808, 489760, 502004, 627505, 979520, 1004008, 1255010, 1959040, 2008016, 2510020, 4016032, 5020040, 8032064, 10040080, 16064128, 20080160, 40160320, 80320640]

約数ペア:

[(1, 80320640), (2, 40160320), (4, 20080160), (5, 16064128), (8, 10040080), (10, 8032064), (16, 5020040), (20, 4016032), (32, 2510020), (40, 2008016), (41, 1959040), (64, 1255010), (80, 1004008), (82, 979520), (128, 627505), (160, 502004), (164, 489760), (205, 391808), (320, 251002), (328, 244880), (410, 195904), (640, 125501), (656, 122440), (820, 97952), (1312, 61220), (1640, 48976), (2624, 30610), (3061, 26240), (3280, 24488), (5248, 15305), (6122, 13120), (6560, 12244)]