28806876

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1447}}^1$

素因数の和:1543

約数の個数: 72

約数和(自身を含む): 84331520

約数和(自身を除く): 55524644

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 79, 84, 126, 158, 237, 252, 316, 474, 553, 711, 948, 1106, 1422, 1447, 1659, 2212, 2844, 2894, 3318, 4341, 4977, 5788, 6636, 8682, 9954, 10129, 13023, 17364, 19908, 20258, 26046, 30387, 40516, 52092, 60774, 91161, 114313, 121548, 182322, 228626, 342939, 364644, 457252, 685878, 800191, 1028817, 1371756, 1600382, 2057634, 2400573, 3200764, 4115268, 4801146, 7201719, 9602292, 14403438, 28806876]

約数ペア:

[(1, 28806876), (2, 14403438), (3, 9602292), (4, 7201719), (6, 4801146), (7, 4115268), (9, 3200764), (12, 2400573), (14, 2057634), (18, 1600382), (21, 1371756), (28, 1028817), (36, 800191), (42, 685878), (63, 457252), (79, 364644), (84, 342939), (126, 228626), (158, 182322), (237, 121548), (252, 114313), (316, 91161), (474, 60774), (553, 52092), (711, 40516), (948, 30387), (1106, 26046), (1422, 20258), (1447, 19908), (1659, 17364), (2212, 13023), (2844, 10129), (2894, 9954), (3318, 8682), (4341, 6636), (4977, 5788)]