208578850

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{2539}}^1$

素因数の和:2635

約数の個数: 48

約数和(自身を含む): 408188160

約数和(自身を除く): 199609310

約数列:

[1, 2, 5, 10, 25, 31, 50, 53, 62, 106, 155, 265, 310, 530, 775, 1325, 1550, 1643, 2539, 2650, 3286, 5078, 8215, 12695, 16430, 25390, 41075, 63475, 78709, 82150, 126950, 134567, 157418, 269134, 393545, 672835, 787090, 1345670, 1967725, 3364175, 3935450, 4171577, 6728350, 8343154, 20857885, 41715770, 104289425, 208578850]

約数ペア:

[(1, 208578850), (2, 104289425), (5, 41715770), (10, 20857885), (25, 8343154), (31, 6728350), (50, 4171577), (53, 3935450), (62, 3364175), (106, 1967725), (155, 1345670), (265, 787090), (310, 672835), (530, 393545), (775, 269134), (1325, 157418), (1550, 134567), (1643, 126950), (2539, 82150), (2650, 78709), (3286, 63475), (5078, 41075), (8215, 25390), (12695, 16430)]