20807856

素因数分解:

$2^4\times 3^2\times {\mathrm{229}}^1\times {\mathrm{631}}^1$

素因数の和:874

約数の個数: 60

約数和(自身を含む): 58580080

約数和(自身を除く): 37772224

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 229, 458, 631, 687, 916, 1262, 1374, 1832, 1893, 2061, 2524, 2748, 3664, 3786, 4122, 5048, 5496, 5679, 7572, 8244, 10096, 10992, 11358, 15144, 16488, 22716, 30288, 32976, 45432, 90864, 144499, 288998, 433497, 577996, 866994, 1155992, 1300491, 1733988, 2311984, 2600982, 3467976, 5201964, 6935952, 10403928, 20807856]

約数ペア:

[(1, 20807856), (2, 10403928), (3, 6935952), (4, 5201964), (6, 3467976), (8, 2600982), (9, 2311984), (12, 1733988), (16, 1300491), (18, 1155992), (24, 866994), (36, 577996), (48, 433497), (72, 288998), (144, 144499), (229, 90864), (458, 45432), (631, 32976), (687, 30288), (916, 22716), (1262, 16488), (1374, 15144), (1832, 11358), (1893, 10992), (2061, 10096), (2524, 8244), (2748, 7572), (3664, 5679), (3786, 5496), (4122, 5048)]