25001988

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{257}}^1$

素因数の和:353

約数の個数: 72

約数和(自身を含む): 65333856

約数和(自身を除く): 40331868

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 67, 121, 132, 134, 201, 242, 257, 268, 363, 402, 484, 514, 726, 737, 771, 804, 1028, 1452, 1474, 1542, 2211, 2827, 2948, 3084, 4422, 5654, 8107, 8481, 8844, 11308, 16214, 16962, 17219, 24321, 31097, 32428, 33924, 34438, 48642, 51657, 62194, 68876, 93291, 97284, 103314, 124388, 186582, 189409, 206628, 373164, 378818, 568227, 757636, 1136454, 2083499, 2272908, 4166998, 6250497, 8333996, 12500994, 25001988]

約数ペア:

[(1, 25001988), (2, 12500994), (3, 8333996), (4, 6250497), (6, 4166998), (11, 2272908), (12, 2083499), (22, 1136454), (33, 757636), (44, 568227), (66, 378818), (67, 373164), (121, 206628), (132, 189409), (134, 186582), (201, 124388), (242, 103314), (257, 97284), (268, 93291), (363, 68876), (402, 62194), (484, 51657), (514, 48642), (726, 34438), (737, 33924), (771, 32428), (804, 31097), (1028, 24321), (1452, 17219), (1474, 16962), (1542, 16214), (2211, 11308), (2827, 8844), (2948, 8481), (3084, 8107), (4422, 5654)]