21102500

素因数分解:

$2^2\times 5^4\times {\mathrm{23}}^1\times {\mathrm{367}}^1$

素因数の和:414

約数の個数: 60

約数和(自身を含む): 48284544

約数和(自身を除く): 27182044

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 125, 230, 250, 367, 460, 500, 575, 625, 734, 1150, 1250, 1468, 1835, 2300, 2500, 2875, 3670, 5750, 7340, 8441, 9175, 11500, 14375, 16882, 18350, 28750, 33764, 36700, 42205, 45875, 57500, 84410, 91750, 168820, 183500, 211025, 229375, 422050, 458750, 844100, 917500, 1055125, 2110250, 4220500, 5275625, 10551250, 21102500]

約数ペア:

[(1, 21102500), (2, 10551250), (4, 5275625), (5, 4220500), (10, 2110250), (20, 1055125), (23, 917500), (25, 844100), (46, 458750), (50, 422050), (92, 229375), (100, 211025), (115, 183500), (125, 168820), (230, 91750), (250, 84410), (367, 57500), (460, 45875), (500, 42205), (575, 36700), (625, 33764), (734, 28750), (1150, 18350), (1250, 16882), (1468, 14375), (1835, 11500), (2300, 9175), (2500, 8441), (2875, 7340), (3670, 5750)]