About the Number

131210880

131210879 ← → 131210881

2進数表記:111110100100001111010000000

漢数字表記:一億三千百二十一万八百八十

素因数分解:

2 7 × 3 1 × 5 1 × 37 1 × 1847 1

素因数の和:1906
約数の個数: 128
約数和(自身を含む): 429770880
約数和(自身を除く): 298560000

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 64, 74, 80, 96, 111, 120, 128, 148, 160, 185, 192, 222, 240, 296, 320, 370, 384, 444, 480, 555, 592, 640, 740, 888, 960, 1110, 1184, 1480, 1776, 1847, 1920, 2220, 2368, 2960, 3552, 3694, 4440, 4736, 5541, 5920, 7104, 7388, 8880, 9235, 11082, 11840, 14208, 14776, 17760, 18470, 22164, 23680, 27705, 29552, 35520, 36940, 44328, 55410, 59104, 68339, 71040, 73880, 88656, 110820, 118208, 136678, 147760, 177312, 205017, 221640, 236416, 273356, 295520, 341695, 354624, 410034, 443280, 546712, 591040, 683390, 709248, 820068, 886560, 1025085, 1093424, 1182080, 1366780, 1640136, 1773120, 2050170, 2186848, 2733560, 3280272, 3546240, 4100340, 4373696, 5467120, 6560544, 8200680, 8747392, 10934240, 13121088, 16401360, 21868480, 26242176, 32802720, 43736960, 65605440, 131210880]

約数ペア:
[(1, 131210880), (2, 65605440), (3, 43736960), (4, 32802720), (5, 26242176), (6, 21868480), (8, 16401360), (10, 13121088), (12, 10934240), (15, 8747392), (16, 8200680), (20, 6560544), (24, 5467120), (30, 4373696), (32, 4100340), (37, 3546240), (40, 3280272), (48, 2733560), (60, 2186848), (64, 2050170), (74, 1773120), (80, 1640136), (96, 1366780), (111, 1182080), (120, 1093424), (128, 1025085), (148, 886560), (160, 820068), (185, 709248), (192, 683390), (222, 591040), (240, 546712), (296, 443280), (320, 410034), (370, 354624), (384, 341695), (444, 295520), (480, 273356), (555, 236416), (592, 221640), (640, 205017), (740, 177312), (888, 147760), (960, 136678), (1110, 118208), (1184, 110820), (1480, 88656), (1776, 73880), (1847, 71040), (1920, 68339), (2220, 59104), (2368, 55410), (2960, 44328), (3552, 36940), (3694, 35520), (4440, 29552), (4736, 27705), (5541, 23680), (5920, 22164), (7104, 18470), (7388, 17760), (8880, 14776), (9235, 14208), (11082, 11840)]

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