20137872

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:412

約数の個数: 80

約数和(自身を含む): 55710720

約数和(自身を除く): 35572848

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 71, 76, 114, 142, 152, 213, 228, 284, 304, 311, 426, 456, 568, 622, 852, 912, 933, 1136, 1244, 1349, 1704, 1866, 2488, 2698, 3408, 3732, 4047, 4976, 5396, 5909, 7464, 8094, 10792, 11818, 14928, 16188, 17727, 21584, 22081, 23636, 32376, 35454, 44162, 47272, 64752, 66243, 70908, 88324, 94544, 132486, 141816, 176648, 264972, 283632, 353296, 419539, 529944, 839078, 1059888, 1258617, 1678156, 2517234, 3356312, 5034468, 6712624, 10068936, 20137872]

約数ペア:

[(1, 20137872), (2, 10068936), (3, 6712624), (4, 5034468), (6, 3356312), (8, 2517234), (12, 1678156), (16, 1258617), (19, 1059888), (24, 839078), (38, 529944), (48, 419539), (57, 353296), (71, 283632), (76, 264972), (114, 176648), (142, 141816), (152, 132486), (213, 94544), (228, 88324), (284, 70908), (304, 66243), (311, 64752), (426, 47272), (456, 44162), (568, 35454), (622, 32376), (852, 23636), (912, 22081), (933, 21584), (1136, 17727), (1244, 16188), (1349, 14928), (1704, 11818), (1866, 10792), (2488, 8094), (2698, 7464), (3408, 5909), (3732, 5396), (4047, 4976)]