28451826

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:280

約数の個数: 72

約数和(自身を含む): 68515200

約数和(自身を除く): 40063374

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 47, 78, 94, 117, 141, 169, 199, 234, 282, 338, 398, 423, 507, 597, 611, 846, 1014, 1194, 1222, 1521, 1791, 1833, 2587, 3042, 3582, 3666, 5174, 5499, 7761, 7943, 9353, 10998, 15522, 15886, 18706, 23283, 23829, 28059, 33631, 46566, 47658, 56118, 67262, 71487, 84177, 100893, 121589, 142974, 168354, 201786, 243178, 302679, 364767, 605358, 729534, 1094301, 1580657, 2188602, 3161314, 4741971, 9483942, 14225913, 28451826]

約数ペア:

[(1, 28451826), (2, 14225913), (3, 9483942), (6, 4741971), (9, 3161314), (13, 2188602), (18, 1580657), (26, 1094301), (39, 729534), (47, 605358), (78, 364767), (94, 302679), (117, 243178), (141, 201786), (169, 168354), (199, 142974), (234, 121589), (282, 100893), (338, 84177), (398, 71487), (423, 67262), (507, 56118), (597, 47658), (611, 46566), (846, 33631), (1014, 28059), (1194, 23829), (1222, 23283), (1521, 18706), (1791, 15886), (1833, 15522), (2587, 10998), (3042, 9353), (3582, 7943), (3666, 7761), (5174, 5499)]