About the Number

28988100

28988099 ← → 28988101

2進数表記:1101110100101001011000100

漢数字表記:二千八百九十八万八千百

素因数分解:

2 2 × 3 2 × 5 2 × 31 1 × 1039 1

素因数の和:1090
約数の個数: 108
約数和(自身を含む): 93882880
約数和(自身を除く): 64894780

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 31, 36, 45, 50, 60, 62, 75, 90, 93, 100, 124, 150, 155, 180, 186, 225, 279, 300, 310, 372, 450, 465, 558, 620, 775, 900, 930, 1039, 1116, 1395, 1550, 1860, 2078, 2325, 2790, 3100, 3117, 4156, 4650, 5195, 5580, 6234, 6975, 9300, 9351, 10390, 12468, 13950, 15585, 18702, 20780, 25975, 27900, 31170, 32209, 37404, 46755, 51950, 62340, 64418, 77925, 93510, 96627, 103900, 128836, 155850, 161045, 187020, 193254, 233775, 289881, 311700, 322090, 386508, 467550, 483135, 579762, 644180, 805225, 935100, 966270, 1159524, 1449405, 1610450, 1932540, 2415675, 2898810, 3220900, 4831350, 5797620, 7247025, 9662700, 14494050, 28988100]

約数ペア:
[(1, 28988100), (2, 14494050), (3, 9662700), (4, 7247025), (5, 5797620), (6, 4831350), (9, 3220900), (10, 2898810), (12, 2415675), (15, 1932540), (18, 1610450), (20, 1449405), (25, 1159524), (30, 966270), (31, 935100), (36, 805225), (45, 644180), (50, 579762), (60, 483135), (62, 467550), (75, 386508), (90, 322090), (93, 311700), (100, 289881), (124, 233775), (150, 193254), (155, 187020), (180, 161045), (186, 155850), (225, 128836), (279, 103900), (300, 96627), (310, 93510), (372, 77925), (450, 64418), (465, 62340), (558, 51950), (620, 46755), (775, 37404), (900, 32209), (930, 31170), (1039, 27900), (1116, 25975), (1395, 20780), (1550, 18702), (1860, 15585), (2078, 13950), (2325, 12468), (2790, 10390), (3100, 9351), (3117, 9300), (4156, 6975), (4650, 6234), (5195, 5580)]

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