About the Number

31315920

31315919 ← → 31315921

2進数表記:1110111011101011111010000

漢数字表記:三千百三十一万五千九百二十

素因数分解:

2 4 × 3 1 × 5 1 × 130483 1

素因数の和:130499
約数の個数: 40
約数和(自身を含む): 97080096
約数和(自身を除く): 65764176

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 130483, 260966, 391449, 521932, 652415, 782898, 1043864, 1304830, 1565796, 1957245, 2087728, 2609660, 3131592, 3914490, 5219320, 6263184, 7828980, 10438640, 15657960, 31315920]

約数ペア:
[(1, 31315920), (2, 15657960), (3, 10438640), (4, 7828980), (5, 6263184), (6, 5219320), (8, 3914490), (10, 3131592), (12, 2609660), (15, 2087728), (16, 1957245), (20, 1565796), (24, 1304830), (30, 1043864), (40, 782898), (48, 652415), (60, 521932), (80, 391449), (120, 260966), (240, 130483)]

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