19829000

素因数分解:

$2^3\times 5^3\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:351

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 27345400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 125, 158, 200, 250, 251, 316, 395, 500, 502, 632, 790, 1000, 1004, 1255, 1580, 1975, 2008, 2510, 3160, 3950, 5020, 6275, 7900, 9875, 10040, 12550, 15800, 19750, 19829, 25100, 31375, 39500, 39658, 50200, 62750, 79000, 79316, 99145, 125500, 158632, 198290, 251000, 396580, 495725, 793160, 991450, 1982900, 2478625, 3965800, 4957250, 9914500, 19829000]

約数ペア:

[(1, 19829000), (2, 9914500), (4, 4957250), (5, 3965800), (8, 2478625), (10, 1982900), (20, 991450), (25, 793160), (40, 495725), (50, 396580), (79, 251000), (100, 198290), (125, 158632), (158, 125500), (200, 99145), (250, 79316), (251, 79000), (316, 62750), (395, 50200), (500, 39658), (502, 39500), (632, 31375), (790, 25100), (1000, 19829), (1004, 19750), (1255, 15800), (1580, 12550), (1975, 10040), (2008, 9875), (2510, 7900), (3160, 6275), (3950, 5020)]