About the Number

128908080

128908079 ← → 128908081

2進数表記:111101011101111101100110000

漢数字表記:一億二千八百九十万八千八十

素因数分解:

2 4 × 3 2 × 5 1 × 7 1 × 25577 1

素因数の和:25603
約数の個数: 120
約数和(自身を含む): 494780832
約数和(自身を除く): 365872752

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 25577, 51154, 76731, 102308, 127885, 153462, 179039, 204616, 230193, 255770, 306924, 358078, 383655, 409232, 460386, 511540, 537117, 613848, 716156, 767310, 895195, 920772, 1023080, 1074234, 1150965, 1227696, 1432312, 1534620, 1611351, 1790390, 1841544, 2046160, 2148468, 2301930, 2685585, 2864624, 3069240, 3222702, 3580780, 3683088, 4296936, 4603860, 5371170, 6138480, 6445404, 7161560, 8056755, 8593872, 9207720, 10742340, 12890808, 14323120, 16113510, 18415440, 21484680, 25781616, 32227020, 42969360, 64454040, 128908080]

約数ペア:
[(1, 128908080), (2, 64454040), (3, 42969360), (4, 32227020), (5, 25781616), (6, 21484680), (7, 18415440), (8, 16113510), (9, 14323120), (10, 12890808), (12, 10742340), (14, 9207720), (15, 8593872), (16, 8056755), (18, 7161560), (20, 6445404), (21, 6138480), (24, 5371170), (28, 4603860), (30, 4296936), (35, 3683088), (36, 3580780), (40, 3222702), (42, 3069240), (45, 2864624), (48, 2685585), (56, 2301930), (60, 2148468), (63, 2046160), (70, 1841544), (72, 1790390), (80, 1611351), (84, 1534620), (90, 1432312), (105, 1227696), (112, 1150965), (120, 1074234), (126, 1023080), (140, 920772), (144, 895195), (168, 767310), (180, 716156), (210, 613848), (240, 537117), (252, 511540), (280, 460386), (315, 409232), (336, 383655), (360, 358078), (420, 306924), (504, 255770), (560, 230193), (630, 204616), (720, 179039), (840, 153462), (1008, 127885), (1260, 102308), (1680, 76731), (2520, 51154), (5040, 25577)]

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