51138724

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 112891968

約数和(自身を除く): 61753244

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 101, 107, 169, 182, 202, 214, 338, 364, 404, 428, 676, 707, 749, 1183, 1313, 1391, 1414, 1498, 2366, 2626, 2782, 2828, 2996, 4732, 5252, 5564, 9191, 9737, 10807, 17069, 18083, 18382, 19474, 21614, 34138, 36166, 36764, 38948, 43228, 68276, 72332, 75649, 119483, 126581, 140491, 151298, 238966, 253162, 280982, 302596, 477932, 506324, 561964, 983437, 1826383, 1966874, 3652766, 3933748, 7305532, 12784681, 25569362, 51138724]

約数ペア:

[(1, 51138724), (2, 25569362), (4, 12784681), (7, 7305532), (13, 3933748), (14, 3652766), (26, 1966874), (28, 1826383), (52, 983437), (91, 561964), (101, 506324), (107, 477932), (169, 302596), (182, 280982), (202, 253162), (214, 238966), (338, 151298), (364, 140491), (404, 126581), (428, 119483), (676, 75649), (707, 72332), (749, 68276), (1183, 43228), (1313, 38948), (1391, 36764), (1414, 36166), (1498, 34138), (2366, 21614), (2626, 19474), (2782, 18382), (2828, 18083), (2996, 17069), (4732, 10807), (5252, 9737), (5564, 9191)]