4199988

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 11272800

約数和(自身を除く): 7072812

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 109, 114, 156, 169, 218, 228, 247, 327, 338, 436, 494, 507, 654, 676, 741, 988, 1014, 1308, 1417, 1482, 2028, 2071, 2834, 2964, 3211, 4142, 4251, 5668, 6213, 6422, 8284, 8502, 9633, 12426, 12844, 17004, 18421, 19266, 24852, 26923, 36842, 38532, 53846, 55263, 73684, 80769, 107692, 110526, 161538, 221052, 323076, 349999, 699998, 1049997, 1399996, 2099994, 4199988]

約数ペア:

[(1, 4199988), (2, 2099994), (3, 1399996), (4, 1049997), (6, 699998), (12, 349999), (13, 323076), (19, 221052), (26, 161538), (38, 110526), (39, 107692), (52, 80769), (57, 73684), (76, 55263), (78, 53846), (109, 38532), (114, 36842), (156, 26923), (169, 24852), (218, 19266), (228, 18421), (247, 17004), (327, 12844), (338, 12426), (436, 9633), (494, 8502), (507, 8284), (654, 6422), (676, 6213), (741, 5668), (988, 4251), (1014, 4142), (1308, 3211), (1417, 2964), (1482, 2834), (2028, 2071)]