About the Number

25123980

25123979 ← → 25123981

2進数表記:1011111110101110010001100

漢数字表記:二千五百十二万三千九百八十

素因数分解:

2 2 × 3 1 × 5 1 × 7 1 × 41 1 × 1459 1

素因数の和:1519
約数の個数: 96
約数和(自身を含む): 82414080
約数和(自身を除く): 57290100

約数列:
[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 41, 42, 60, 70, 82, 84, 105, 123, 140, 164, 205, 210, 246, 287, 410, 420, 492, 574, 615, 820, 861, 1148, 1230, 1435, 1459, 1722, 2460, 2870, 2918, 3444, 4305, 4377, 5740, 5836, 7295, 8610, 8754, 10213, 14590, 17220, 17508, 20426, 21885, 29180, 30639, 40852, 43770, 51065, 59819, 61278, 87540, 102130, 119638, 122556, 153195, 179457, 204260, 239276, 299095, 306390, 358914, 418733, 598190, 612780, 717828, 837466, 897285, 1196380, 1256199, 1674932, 1794570, 2093665, 2512398, 3589140, 4187330, 5024796, 6280995, 8374660, 12561990, 25123980]

約数ペア:
[(1, 25123980), (2, 12561990), (3, 8374660), (4, 6280995), (5, 5024796), (6, 4187330), (7, 3589140), (10, 2512398), (12, 2093665), (14, 1794570), (15, 1674932), (20, 1256199), (21, 1196380), (28, 897285), (30, 837466), (35, 717828), (41, 612780), (42, 598190), (60, 418733), (70, 358914), (82, 306390), (84, 299095), (105, 239276), (123, 204260), (140, 179457), (164, 153195), (205, 122556), (210, 119638), (246, 102130), (287, 87540), (410, 61278), (420, 59819), (492, 51065), (574, 43770), (615, 40852), (820, 30639), (861, 29180), (1148, 21885), (1230, 20426), (1435, 17508), (1459, 17220), (1722, 14590), (2460, 10213), (2870, 8754), (2918, 8610), (3444, 7295), (4305, 5836), (4377, 5740)]

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