25818440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9091}}^1$

素因数の和:9173

約数の個数: 32

約数和(自身を含む): 58916160

約数和(自身を除く): 33097720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 9091, 18182, 36364, 45455, 72728, 90910, 181820, 363640, 645461, 1290922, 2581844, 3227305, 5163688, 6454610, 12909220, 25818440]

約数ペア:

[(1, 25818440), (2, 12909220), (4, 6454610), (5, 5163688), (8, 3227305), (10, 2581844), (20, 1290922), (40, 645461), (71, 363640), (142, 181820), (284, 90910), (355, 72728), (568, 45455), (710, 36364), (1420, 18182), (2840, 9091)]