664778884

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{503}}^1\times {\mathrm{613}}^1$

素因数の和:1145

約数の個数: 72

約数和(自身を含む): 1481675328

約数和(自身を除く): 816896444

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 503, 539, 613, 1006, 1078, 1226, 2012, 2156, 2452, 3521, 4291, 5533, 6743, 7042, 8582, 11066, 13486, 14084, 17164, 22132, 24647, 26972, 30037, 38731, 47201, 49294, 60074, 77462, 94402, 98588, 120148, 154924, 188804, 271117, 308339, 330407, 542234, 616678, 660814, 1084468, 1233356, 1321628, 2158373, 3391729, 4316746, 6783458, 8633492, 13566916, 15108611, 23742103, 30217222, 47484206, 60434444, 94968412, 166194721, 332389442, 664778884]

約数ペア:

[(1, 664778884), (2, 332389442), (4, 166194721), (7, 94968412), (11, 60434444), (14, 47484206), (22, 30217222), (28, 23742103), (44, 15108611), (49, 13566916), (77, 8633492), (98, 6783458), (154, 4316746), (196, 3391729), (308, 2158373), (503, 1321628), (539, 1233356), (613, 1084468), (1006, 660814), (1078, 616678), (1226, 542234), (2012, 330407), (2156, 308339), (2452, 271117), (3521, 188804), (4291, 154924), (5533, 120148), (6743, 98588), (7042, 94402), (8582, 77462), (11066, 60074), (13486, 49294), (14084, 47201), (17164, 38731), (22132, 30037), (24647, 26972)]