19672640

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4729}}^1$

素因数の和:4759

約数の個数: 56

約数和(自身を含む): 50459640

約数和(自身を除く): 30787000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 4729, 9458, 18916, 23645, 37832, 47290, 61477, 75664, 94580, 122954, 151328, 189160, 245908, 302656, 307385, 378320, 491816, 614770, 756640, 983632, 1229540, 1513280, 1967264, 2459080, 3934528, 4918160, 9836320, 19672640]

約数ペア:

[(1, 19672640), (2, 9836320), (4, 4918160), (5, 3934528), (8, 2459080), (10, 1967264), (13, 1513280), (16, 1229540), (20, 983632), (26, 756640), (32, 614770), (40, 491816), (52, 378320), (64, 307385), (65, 302656), (80, 245908), (104, 189160), (130, 151328), (160, 122954), (208, 94580), (260, 75664), (320, 61477), (416, 47290), (520, 37832), (832, 23645), (1040, 18916), (2080, 9458), (4160, 4729)]