20139364

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 42166656

約数和(自身を除く): 22027292

約数列:

[1, 2, 4, 7, 14, 28, 41, 53, 82, 106, 164, 212, 287, 331, 371, 574, 662, 742, 1148, 1324, 1484, 2173, 2317, 4346, 4634, 8692, 9268, 13571, 15211, 17543, 27142, 30422, 35086, 54284, 60844, 70172, 94997, 122801, 189994, 245602, 379988, 491204, 719263, 1438526, 2877052, 5034841, 10069682, 20139364]

約数ペア:

[(1, 20139364), (2, 10069682), (4, 5034841), (7, 2877052), (14, 1438526), (28, 719263), (41, 491204), (53, 379988), (82, 245602), (106, 189994), (164, 122801), (212, 94997), (287, 70172), (331, 60844), (371, 54284), (574, 35086), (662, 30422), (742, 27142), (1148, 17543), (1324, 15211), (1484, 13571), (2173, 9268), (2317, 8692), (4346, 4634)]