129636620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{3517}}^1$

素因数の和:3642

約数の個数: 48

約数和(自身を含む): 289601760

約数和(自身を除く): 159965140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 485, 970, 1843, 1940, 3517, 3686, 7034, 7372, 9215, 14068, 17585, 18430, 35170, 36860, 66823, 70340, 133646, 267292, 334115, 341149, 668230, 682298, 1336460, 1364596, 1705745, 3411490, 6481831, 6822980, 12963662, 25927324, 32409155, 64818310, 129636620]

約数ペア:

[(1, 129636620), (2, 64818310), (4, 32409155), (5, 25927324), (10, 12963662), (19, 6822980), (20, 6481831), (38, 3411490), (76, 1705745), (95, 1364596), (97, 1336460), (190, 682298), (194, 668230), (380, 341149), (388, 334115), (485, 267292), (970, 133646), (1843, 70340), (1940, 66823), (3517, 36860), (3686, 35170), (7034, 18430), (7372, 17585), (9215, 14068)]