28190916

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:152

約数の個数: 144

約数和(自身を含む): 83900544

約数和(自身を除く): 55709628

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 27, 36, 39, 46, 52, 54, 69, 78, 81, 92, 97, 108, 117, 138, 156, 162, 194, 207, 234, 243, 276, 291, 299, 324, 351, 388, 414, 468, 486, 582, 598, 621, 702, 828, 873, 897, 972, 1053, 1164, 1196, 1242, 1261, 1404, 1746, 1794, 1863, 2106, 2231, 2484, 2522, 2619, 2691, 3159, 3492, 3588, 3726, 3783, 4212, 4462, 5044, 5238, 5382, 5589, 6318, 6693, 7452, 7566, 7857, 8073, 8924, 10476, 10764, 11178, 11349, 12636, 13386, 15132, 15714, 16146, 20079, 22356, 22698, 23571, 24219, 26772, 29003, 31428, 32292, 34047, 40158, 45396, 47142, 48438, 58006, 60237, 68094, 72657, 80316, 87009, 94284, 96876, 102141, 116012, 120474, 136188, 145314, 174018, 180711, 204282, 240948, 261027, 290628, 306423, 348036, 361422, 408564, 522054, 542133, 612846, 722844, 783081, 1044108, 1084266, 1225692, 1566162, 2168532, 2349243, 3132324, 4698486, 7047729, 9396972, 14095458, 28190916]

約数ペア:

[(1, 28190916), (2, 14095458), (3, 9396972), (4, 7047729), (6, 4698486), (9, 3132324), (12, 2349243), (13, 2168532), (18, 1566162), (23, 1225692), (26, 1084266), (27, 1044108), (36, 783081), (39, 722844), (46, 612846), (52, 542133), (54, 522054), (69, 408564), (78, 361422), (81, 348036), (92, 306423), (97, 290628), (108, 261027), (117, 240948), (138, 204282), (156, 180711), (162, 174018), (194, 145314), (207, 136188), (234, 120474), (243, 116012), (276, 102141), (291, 96876), (299, 94284), (324, 87009), (351, 80316), (388, 72657), (414, 68094), (468, 60237), (486, 58006), (582, 48438), (598, 47142), (621, 45396), (702, 40158), (828, 34047), (873, 32292), (897, 31428), (972, 29003), (1053, 26772), (1164, 24219), (1196, 23571), (1242, 22698), (1261, 22356), (1404, 20079), (1746, 16146), (1794, 15714), (1863, 15132), (2106, 13386), (2231, 12636), (2484, 11349), (2522, 11178), (2619, 10764), (2691, 10476), (3159, 8924), (3492, 8073), (3588, 7857), (3726, 7566), (3783, 7452), (4212, 6693), (4462, 6318), (5044, 5589), (5238, 5382)]