280658882

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{977}}^1$

素因数の和:1091

約数の個数: 48

約数和(自身を含む): 518825088

約数和(自身を除く): 238166206

約数列:

[1, 2, 7, 14, 17, 34, 71, 119, 142, 238, 289, 497, 578, 977, 994, 1207, 1954, 2023, 2414, 4046, 6839, 8449, 13678, 16609, 16898, 20519, 33218, 41038, 69367, 116263, 138734, 143633, 232526, 282353, 287266, 485569, 564706, 971138, 1179239, 1976471, 2358478, 3952942, 8254673, 16509346, 20047063, 40094126, 140329441, 280658882]

約数ペア:

[(1, 280658882), (2, 140329441), (7, 40094126), (14, 20047063), (17, 16509346), (34, 8254673), (71, 3952942), (119, 2358478), (142, 1976471), (238, 1179239), (289, 971138), (497, 564706), (578, 485569), (977, 287266), (994, 282353), (1207, 232526), (1954, 143633), (2023, 138734), (2414, 116263), (4046, 69367), (6839, 41038), (8449, 33218), (13678, 20519), (16609, 16898)]