About the Number

28002091005

28002091004 ← → 28002091006

2進数表記:11010000101000011011111111111111101

漢数字表記:二百八十億二百九万千五

素因数分解:

3 2 × 5 1 × 7 2 × 29 1 × 437909 1

素因数の和:437963
約数の個数: 72
約数和(自身を含む): 58408435800
約数和(自身を除く): 30406344795

約数列:
[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 49, 63, 87, 105, 145, 147, 203, 245, 261, 315, 435, 441, 609, 735, 1015, 1305, 1421, 1827, 2205, 3045, 4263, 7105, 9135, 12789, 21315, 63945, 437909, 1313727, 2189545, 3065363, 3941181, 6568635, 9196089, 12699361, 15326815, 19705905, 21457541, 27588267, 38098083, 45980445, 63496805, 64372623, 88895527, 107287705, 114294249, 137941335, 190490415, 193117869, 266686581, 321863115, 444477635, 571471245, 622268689, 800059743, 965589345, 1333432905, 1866806067, 3111343445, 4000298715, 5600418201, 9334030335, 28002091005]

約数ペア:
[(1, 28002091005), (3, 9334030335), (5, 5600418201), (7, 4000298715), (9, 3111343445), (15, 1866806067), (21, 1333432905), (29, 965589345), (35, 800059743), (45, 622268689), (49, 571471245), (63, 444477635), (87, 321863115), (105, 266686581), (145, 193117869), (147, 190490415), (203, 137941335), (245, 114294249), (261, 107287705), (315, 88895527), (435, 64372623), (441, 63496805), (609, 45980445), (735, 38098083), (1015, 27588267), (1305, 21457541), (1421, 19705905), (1827, 15326815), (2205, 12699361), (3045, 9196089), (4263, 6568635), (7105, 3941181), (9135, 3065363), (12789, 2189545), (21315, 1313727), (63945, 437909)]

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