81986200

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{5189}}^1$

素因数の和:5284

約数の個数: 48

約数和(自身を含む): 193068000

約数和(自身を除く): 111081800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 632, 790, 1580, 1975, 3160, 3950, 5189, 7900, 10378, 15800, 20756, 25945, 41512, 51890, 103780, 129725, 207560, 259450, 409931, 518900, 819862, 1037800, 1639724, 2049655, 3279448, 4099310, 8198620, 10248275, 16397240, 20496550, 40993100, 81986200]

約数ペア:

[(1, 81986200), (2, 40993100), (4, 20496550), (5, 16397240), (8, 10248275), (10, 8198620), (20, 4099310), (25, 3279448), (40, 2049655), (50, 1639724), (79, 1037800), (100, 819862), (158, 518900), (200, 409931), (316, 259450), (395, 207560), (632, 129725), (790, 103780), (1580, 51890), (1975, 41512), (3160, 25945), (3950, 20756), (5189, 15800), (7900, 10378)]