About the Number

12801840

12801839 ← → 12801841

2進数表記:110000110101011100110000

漢数字表記:千二百八十万千八百四十

素因数分解:

2 4 × 3 1 × 5 1 × 41 1 × 1301 1

素因数の和:1358
約数の個数: 80
約数和(自身を含む): 40684896
約数和(自身を除く): 27883056

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 164, 205, 240, 246, 328, 410, 492, 615, 656, 820, 984, 1230, 1301, 1640, 1968, 2460, 2602, 3280, 3903, 4920, 5204, 6505, 7806, 9840, 10408, 13010, 15612, 19515, 20816, 26020, 31224, 39030, 52040, 53341, 62448, 78060, 104080, 106682, 156120, 160023, 213364, 266705, 312240, 320046, 426728, 533410, 640092, 800115, 853456, 1066820, 1280184, 1600230, 2133640, 2560368, 3200460, 4267280, 6400920, 12801840]

約数ペア:
[(1, 12801840), (2, 6400920), (3, 4267280), (4, 3200460), (5, 2560368), (6, 2133640), (8, 1600230), (10, 1280184), (12, 1066820), (15, 853456), (16, 800115), (20, 640092), (24, 533410), (30, 426728), (40, 320046), (41, 312240), (48, 266705), (60, 213364), (80, 160023), (82, 156120), (120, 106682), (123, 104080), (164, 78060), (205, 62448), (240, 53341), (246, 52040), (328, 39030), (410, 31224), (492, 26020), (615, 20816), (656, 19515), (820, 15612), (984, 13010), (1230, 10408), (1301, 9840), (1640, 7806), (1968, 6505), (2460, 5204), (2602, 4920), (3280, 3903)]

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