About the Number

121645980

121645979 ← → 121645981

2進数表記:111010000000010101110011100

漢数字表記:一億二千百六十四万五千九百八十

素因数分解:

2 2 × 3 2 × 5 1 × 19 1 × 35569 1

素因数の和:35603
約数の個数: 72
約数和(自身を含む): 388424400
約数和(自身を除く): 266778420

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 35569, 71138, 106707, 142276, 177845, 213414, 320121, 355690, 426828, 533535, 640242, 675811, 711380, 1067070, 1280484, 1351622, 1600605, 2027433, 2134140, 2703244, 3201210, 3379055, 4054866, 6082299, 6402420, 6758110, 8109732, 10137165, 12164598, 13516220, 20274330, 24329196, 30411495, 40548660, 60822990, 121645980]

約数ペア:
[(1, 121645980), (2, 60822990), (3, 40548660), (4, 30411495), (5, 24329196), (6, 20274330), (9, 13516220), (10, 12164598), (12, 10137165), (15, 8109732), (18, 6758110), (19, 6402420), (20, 6082299), (30, 4054866), (36, 3379055), (38, 3201210), (45, 2703244), (57, 2134140), (60, 2027433), (76, 1600605), (90, 1351622), (95, 1280484), (114, 1067070), (171, 711380), (180, 675811), (190, 640242), (228, 533535), (285, 426828), (342, 355690), (380, 320121), (570, 213414), (684, 177845), (855, 142276), (1140, 106707), (1710, 71138), (3420, 35569)]

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