66404728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:572

約数の個数: 64

約数和(自身を含む): 141926400

約数和(自身を除く): 75521672

約数列:

[1, 2, 4, 8, 13, 26, 31, 43, 52, 62, 86, 104, 124, 172, 248, 344, 403, 479, 559, 806, 958, 1118, 1333, 1612, 1916, 2236, 2666, 3224, 3832, 4472, 5332, 6227, 10664, 12454, 14849, 17329, 20597, 24908, 29698, 34658, 41194, 49816, 59396, 69316, 82388, 118792, 138632, 164776, 193037, 267761, 386074, 535522, 638507, 772148, 1071044, 1277014, 1544296, 2142088, 2554028, 5108056, 8300591, 16601182, 33202364, 66404728]

約数ペア:

[(1, 66404728), (2, 33202364), (4, 16601182), (8, 8300591), (13, 5108056), (26, 2554028), (31, 2142088), (43, 1544296), (52, 1277014), (62, 1071044), (86, 772148), (104, 638507), (124, 535522), (172, 386074), (248, 267761), (344, 193037), (403, 164776), (479, 138632), (559, 118792), (806, 82388), (958, 69316), (1118, 59396), (1333, 49816), (1612, 41194), (1916, 34658), (2236, 29698), (2666, 24908), (3224, 20597), (3832, 17329), (4472, 14849), (5332, 12454), (6227, 10664)]