About the Number

28013580

28013579 ← → 28013581

2進数表記:1101010110111010000001100

漢数字表記:二千八百一万三千五百八十

素因数分解:

2 2 × 3 3 × 5 1 × 7 1 × 7411 1

素因数の和:7436
約数の個数: 96
約数和(自身を含む): 99617280
約数和(自身を除く): 71603700

約数列:
[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 7411, 14822, 22233, 29644, 37055, 44466, 51877, 66699, 74110, 88932, 103754, 111165, 133398, 148220, 155631, 200097, 207508, 222330, 259385, 266796, 311262, 333495, 400194, 444660, 466893, 518770, 622524, 666990, 778155, 800388, 933786, 1000485, 1037540, 1333980, 1400679, 1556310, 1867572, 2000970, 2334465, 2801358, 3112620, 4001940, 4668930, 5602716, 7003395, 9337860, 14006790, 28013580]

約数ペア:
[(1, 28013580), (2, 14006790), (3, 9337860), (4, 7003395), (5, 5602716), (6, 4668930), (7, 4001940), (9, 3112620), (10, 2801358), (12, 2334465), (14, 2000970), (15, 1867572), (18, 1556310), (20, 1400679), (21, 1333980), (27, 1037540), (28, 1000485), (30, 933786), (35, 800388), (36, 778155), (42, 666990), (45, 622524), (54, 518770), (60, 466893), (63, 444660), (70, 400194), (84, 333495), (90, 311262), (105, 266796), (108, 259385), (126, 222330), (135, 207508), (140, 200097), (180, 155631), (189, 148220), (210, 133398), (252, 111165), (270, 103754), (315, 88932), (378, 74110), (420, 66699), (540, 51877), (630, 44466), (756, 37055), (945, 29644), (1260, 22233), (1890, 14822), (3780, 7411)]

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