28417578

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:419

約数の個数: 64

約数和(自身を含む): 69120000

約数和(自身を除く): 40702422

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 149, 239, 266, 298, 399, 447, 478, 717, 798, 894, 1043, 1434, 1673, 2086, 2831, 3129, 3346, 4541, 5019, 5662, 6258, 8493, 9082, 10038, 13623, 16986, 19817, 27246, 31787, 35611, 39634, 59451, 63574, 71222, 95361, 106833, 118902, 190722, 213666, 249277, 498554, 676609, 747831, 1353218, 1495662, 2029827, 4059654, 4736263, 9472526, 14208789, 28417578]

約数ペア:

[(1, 28417578), (2, 14208789), (3, 9472526), (6, 4736263), (7, 4059654), (14, 2029827), (19, 1495662), (21, 1353218), (38, 747831), (42, 676609), (57, 498554), (114, 249277), (133, 213666), (149, 190722), (239, 118902), (266, 106833), (298, 95361), (399, 71222), (447, 63574), (478, 59451), (717, 39634), (798, 35611), (894, 31787), (1043, 27246), (1434, 19817), (1673, 16986), (2086, 13623), (2831, 10038), (3129, 9082), (3346, 8493), (4541, 6258), (5019, 5662)]