80772400

素因数分解:

$2^4\times 5^2\times {\mathrm{113}}^1\times {\mathrm{1787}}^1$

素因数の和:1918

約数の個数: 60

約数和(自身を含む): 195882552

約数和(自身を除く): 115110152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 113, 200, 226, 400, 452, 565, 904, 1130, 1787, 1808, 2260, 2825, 3574, 4520, 5650, 7148, 8935, 9040, 11300, 14296, 17870, 22600, 28592, 35740, 44675, 45200, 71480, 89350, 142960, 178700, 201931, 357400, 403862, 714800, 807724, 1009655, 1615448, 2019310, 3230896, 4038620, 5048275, 8077240, 10096550, 16154480, 20193100, 40386200, 80772400]

約数ペア:

[(1, 80772400), (2, 40386200), (4, 20193100), (5, 16154480), (8, 10096550), (10, 8077240), (16, 5048275), (20, 4038620), (25, 3230896), (40, 2019310), (50, 1615448), (80, 1009655), (100, 807724), (113, 714800), (200, 403862), (226, 357400), (400, 201931), (452, 178700), (565, 142960), (904, 89350), (1130, 71480), (1787, 45200), (1808, 44675), (2260, 35740), (2825, 28592), (3574, 22600), (4520, 17870), (5650, 14296), (7148, 11300), (8935, 9040)]