28089828

素因数分解:

$2^2\times 3^7\times {\mathrm{13}}^2\times {\mathrm{19}}^1$

素因数の和:70

約数の個数: 144

約数和(自身を含む): 84033600

約数和(自身を除く): 55943772

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 27, 36, 38, 39, 52, 54, 57, 76, 78, 81, 108, 114, 117, 156, 162, 169, 171, 228, 234, 243, 247, 324, 338, 342, 351, 468, 486, 494, 507, 513, 676, 684, 702, 729, 741, 972, 988, 1014, 1026, 1053, 1404, 1458, 1482, 1521, 1539, 2028, 2052, 2106, 2187, 2223, 2916, 2964, 3042, 3078, 3159, 3211, 4212, 4374, 4446, 4563, 4617, 6084, 6156, 6318, 6422, 6669, 8748, 8892, 9126, 9234, 9477, 9633, 12636, 12844, 13338, 13689, 13851, 18252, 18468, 18954, 19266, 20007, 26676, 27378, 27702, 28431, 28899, 37908, 38532, 40014, 41067, 41553, 54756, 55404, 56862, 57798, 60021, 80028, 82134, 83106, 86697, 113724, 115596, 120042, 123201, 164268, 166212, 173394, 180063, 240084, 246402, 260091, 346788, 360126, 369603, 492804, 520182, 540189, 720252, 739206, 780273, 1040364, 1080378, 1478412, 1560546, 2160756, 2340819, 3121092, 4681638, 7022457, 9363276, 14044914, 28089828]

約数ペア:

[(1, 28089828), (2, 14044914), (3, 9363276), (4, 7022457), (6, 4681638), (9, 3121092), (12, 2340819), (13, 2160756), (18, 1560546), (19, 1478412), (26, 1080378), (27, 1040364), (36, 780273), (38, 739206), (39, 720252), (52, 540189), (54, 520182), (57, 492804), (76, 369603), (78, 360126), (81, 346788), (108, 260091), (114, 246402), (117, 240084), (156, 180063), (162, 173394), (169, 166212), (171, 164268), (228, 123201), (234, 120042), (243, 115596), (247, 113724), (324, 86697), (338, 83106), (342, 82134), (351, 80028), (468, 60021), (486, 57798), (494, 56862), (507, 55404), (513, 54756), (676, 41553), (684, 41067), (702, 40014), (729, 38532), (741, 37908), (972, 28899), (988, 28431), (1014, 27702), (1026, 27378), (1053, 26676), (1404, 20007), (1458, 19266), (1482, 18954), (1521, 18468), (1539, 18252), (2028, 13851), (2052, 13689), (2106, 13338), (2187, 12844), (2223, 12636), (2916, 9633), (2964, 9477), (3042, 9234), (3078, 9126), (3159, 8892), (3211, 8748), (4212, 6669), (4374, 6422), (4446, 6318), (4563, 6156), (4617, 6084)]