21626800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{4159}}^1$

素因数の和:4190

約数の個数: 60

約数和(自身を含む): 55968640

約数和(自身を除く): 34341840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 4159, 5200, 8318, 16636, 20795, 33272, 41590, 54067, 66544, 83180, 103975, 108134, 166360, 207950, 216268, 270335, 332720, 415900, 432536, 540670, 831800, 865072, 1081340, 1351675, 1663600, 2162680, 2703350, 4325360, 5406700, 10813400, 21626800]

約数ペア:

[(1, 21626800), (2, 10813400), (4, 5406700), (5, 4325360), (8, 2703350), (10, 2162680), (13, 1663600), (16, 1351675), (20, 1081340), (25, 865072), (26, 831800), (40, 540670), (50, 432536), (52, 415900), (65, 332720), (80, 270335), (100, 216268), (104, 207950), (130, 166360), (200, 108134), (208, 103975), (260, 83180), (325, 66544), (400, 54067), (520, 41590), (650, 33272), (1040, 20795), (1300, 16636), (2600, 8318), (4159, 5200)]