28298988

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:335

約数の個数: 72

約数和(自身を含む): 74330256

約数和(自身を除く): 46031268

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 101, 129, 172, 181, 202, 258, 303, 362, 387, 404, 516, 543, 606, 724, 774, 909, 1086, 1212, 1548, 1629, 1818, 2172, 3258, 3636, 4343, 6516, 7783, 8686, 13029, 15566, 17372, 18281, 23349, 26058, 31132, 36562, 39087, 46698, 52116, 54843, 70047, 73124, 78174, 93396, 109686, 140094, 156348, 164529, 219372, 280188, 329058, 658116, 786083, 1572166, 2358249, 3144332, 4716498, 7074747, 9432996, 14149494, 28298988]

約数ペア:

[(1, 28298988), (2, 14149494), (3, 9432996), (4, 7074747), (6, 4716498), (9, 3144332), (12, 2358249), (18, 1572166), (36, 786083), (43, 658116), (86, 329058), (101, 280188), (129, 219372), (172, 164529), (181, 156348), (202, 140094), (258, 109686), (303, 93396), (362, 78174), (387, 73124), (404, 70047), (516, 54843), (543, 52116), (606, 46698), (724, 39087), (774, 36562), (909, 31132), (1086, 26058), (1212, 23349), (1548, 18281), (1629, 17372), (1818, 15566), (2172, 13029), (3258, 8686), (3636, 7783), (4343, 6516)]