About the Number

128706480

128706479 ← → 128706481

2進数表記:111101010111110011110110000

漢数字表記:一億二千八百七十万六千四百八十

素因数分解:

2 4 × 3 2 × 5 1 × 7 1 × 25537 1

素因数の和:25563
約数の個数: 120
約数和(自身を含む): 494007072
約数和(自身を除く): 365300592

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, 25537, 51074, 76611, 102148, 127685, 153222, 178759, 204296, 229833, 255370, 306444, 357518, 383055, 408592, 459666, 510740, 536277, 612888, 715036, 766110, 893795, 919332, 1021480, 1072554, 1149165, 1225776, 1430072, 1532220, 1608831, 1787590, 1838664, 2042960, 2145108, 2298330, 2681385, 2860144, 3064440, 3217662, 3575180, 3677328, 4290216, 4596660, 5362770, 6128880, 6435324, 7150360, 8044155, 8580432, 9193320, 10725540, 12870648, 14300720, 16088310, 18386640, 21451080, 25741296, 32176620, 42902160, 64353240, 128706480]

約数ペア:
[(1, 128706480), (2, 64353240), (3, 42902160), (4, 32176620), (5, 25741296), (6, 21451080), (7, 18386640), (8, 16088310), (9, 14300720), (10, 12870648), (12, 10725540), (14, 9193320), (15, 8580432), (16, 8044155), (18, 7150360), (20, 6435324), (21, 6128880), (24, 5362770), (28, 4596660), (30, 4290216), (35, 3677328), (36, 3575180), (40, 3217662), (42, 3064440), (45, 2860144), (48, 2681385), (56, 2298330), (60, 2145108), (63, 2042960), (70, 1838664), (72, 1787590), (80, 1608831), (84, 1532220), (90, 1430072), (105, 1225776), (112, 1149165), (120, 1072554), (126, 1021480), (140, 919332), (144, 893795), (168, 766110), (180, 715036), (210, 612888), (240, 536277), (252, 510740), (280, 459666), (315, 408592), (336, 383055), (360, 357518), (420, 306444), (504, 255370), (560, 229833), (630, 204296), (720, 178759), (840, 153222), (1008, 127685), (1260, 102148), (1680, 76611), (2520, 51074), (5040, 25537)]

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