20565944048

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{711329}}^1$

素因数の和:711489

約数の個数: 40

約数和(自身を含む): 43220410800

約数和(自身を除く): 22654466752

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 139, 208, 278, 556, 1112, 1807, 2224, 3614, 7228, 14456, 28912, 711329, 1422658, 2845316, 5690632, 9247277, 11381264, 18494554, 36989108, 73978216, 98874731, 147956432, 197749462, 395498924, 790997848, 1285371503, 1581995696, 2570743006, 5141486012, 10282972024, 20565944048]

約数ペア:

[(1, 20565944048), (2, 10282972024), (4, 5141486012), (8, 2570743006), (13, 1581995696), (16, 1285371503), (26, 790997848), (52, 395498924), (104, 197749462), (139, 147956432), (208, 98874731), (278, 73978216), (556, 36989108), (1112, 18494554), (1807, 11381264), (2224, 9247277), (3614, 5690632), (7228, 2845316), (14456, 1422658), (28912, 711329)]