28650380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11839}}^1$

素因数の和:11870

約数の個数: 36

約数和(自身を含む): 66138240

約数和(自身を除く): 37487860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 11839, 23678, 47356, 59195, 118390, 130229, 236780, 260458, 520916, 651145, 1302290, 1432519, 2604580, 2865038, 5730076, 7162595, 14325190, 28650380]

約数ペア:

[(1, 28650380), (2, 14325190), (4, 7162595), (5, 5730076), (10, 2865038), (11, 2604580), (20, 1432519), (22, 1302290), (44, 651145), (55, 520916), (110, 260458), (121, 236780), (220, 130229), (242, 118390), (484, 59195), (605, 47356), (1210, 23678), (2420, 11839)]