21586475320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{265451}}^1$

素因数の和:265588

約数の個数: 64

約数和(自身を含む): 51603868800

約数和(自身を除く): 30017393480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 107, 152, 190, 214, 380, 428, 535, 760, 856, 1070, 2033, 2140, 4066, 4280, 8132, 10165, 16264, 20330, 40660, 81320, 265451, 530902, 1061804, 1327255, 2123608, 2654510, 5043569, 5309020, 10087138, 10618040, 20174276, 25217845, 28403257, 40348552, 50435690, 56806514, 100871380, 113613028, 142016285, 201742760, 227226056, 284032570, 539661883, 568065140, 1079323766, 1136130280, 2158647532, 2698309415, 4317295064, 5396618830, 10793237660, 21586475320]

約数ペア:

[(1, 21586475320), (2, 10793237660), (4, 5396618830), (5, 4317295064), (8, 2698309415), (10, 2158647532), (19, 1136130280), (20, 1079323766), (38, 568065140), (40, 539661883), (76, 284032570), (95, 227226056), (107, 201742760), (152, 142016285), (190, 113613028), (214, 100871380), (380, 56806514), (428, 50435690), (535, 40348552), (760, 28403257), (856, 25217845), (1070, 20174276), (2033, 10618040), (2140, 10087138), (4066, 5309020), (4280, 5043569), (8132, 2654510), (10165, 2123608), (16264, 1327255), (20330, 1061804), (40660, 530902), (81320, 265451)]