28808676

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 144

約数和(自身を含む): 86647680

約数和(自身を除く): 57839004

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 27, 34, 36, 39, 51, 52, 54, 68, 71, 78, 102, 108, 117, 142, 153, 156, 204, 213, 221, 234, 284, 289, 306, 351, 426, 442, 459, 468, 578, 612, 639, 663, 702, 852, 867, 884, 918, 923, 1156, 1207, 1278, 1326, 1404, 1734, 1836, 1846, 1917, 1989, 2414, 2556, 2601, 2652, 2769, 3468, 3621, 3692, 3757, 3834, 3978, 4828, 5202, 5538, 5967, 7242, 7514, 7668, 7803, 7956, 8307, 10404, 10863, 11076, 11271, 11934, 14484, 15028, 15606, 15691, 16614, 20519, 21726, 22542, 23868, 24921, 31212, 31382, 32589, 33228, 33813, 41038, 43452, 45084, 47073, 49842, 61557, 62764, 65178, 67626, 82076, 94146, 99684, 101439, 123114, 130356, 135252, 141219, 184671, 188292, 202878, 246228, 266747, 282438, 369342, 405756, 423657, 533494, 554013, 564876, 738684, 800241, 847314, 1066988, 1108026, 1600482, 1694628, 2216052, 2400723, 3200964, 4801446, 7202169, 9602892, 14404338, 28808676]

約数ペア:

[(1, 28808676), (2, 14404338), (3, 9602892), (4, 7202169), (6, 4801446), (9, 3200964), (12, 2400723), (13, 2216052), (17, 1694628), (18, 1600482), (26, 1108026), (27, 1066988), (34, 847314), (36, 800241), (39, 738684), (51, 564876), (52, 554013), (54, 533494), (68, 423657), (71, 405756), (78, 369342), (102, 282438), (108, 266747), (117, 246228), (142, 202878), (153, 188292), (156, 184671), (204, 141219), (213, 135252), (221, 130356), (234, 123114), (284, 101439), (289, 99684), (306, 94146), (351, 82076), (426, 67626), (442, 65178), (459, 62764), (468, 61557), (578, 49842), (612, 47073), (639, 45084), (663, 43452), (702, 41038), (852, 33813), (867, 33228), (884, 32589), (918, 31382), (923, 31212), (1156, 24921), (1207, 23868), (1278, 22542), (1326, 21726), (1404, 20519), (1734, 16614), (1836, 15691), (1846, 15606), (1917, 15028), (1989, 14484), (2414, 11934), (2556, 11271), (2601, 11076), (2652, 10863), (2769, 10404), (3468, 8307), (3621, 7956), (3692, 7803), (3757, 7668), (3834, 7514), (3978, 7242), (4828, 5967), (5202, 5538)]