About the Number

31132480

31132479 ← → 31132481

2進数表記:1110110110000101101000000

漢数字表記:三千百十三万二千四百八十

素因数分解:

2 6 × 5 1 × 271 1 × 359 1

素因数の和:647
約数の個数: 56
約数和(自身を含む): 74615040
約数和(自身を除く): 43482560

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 271, 320, 359, 542, 718, 1084, 1355, 1436, 1795, 2168, 2710, 2872, 3590, 4336, 5420, 5744, 7180, 8672, 10840, 11488, 14360, 17344, 21680, 22976, 28720, 43360, 57440, 86720, 97289, 114880, 194578, 389156, 486445, 778312, 972890, 1556624, 1945780, 3113248, 3891560, 6226496, 7783120, 15566240, 31132480]

約数ペア:
[(1, 31132480), (2, 15566240), (4, 7783120), (5, 6226496), (8, 3891560), (10, 3113248), (16, 1945780), (20, 1556624), (32, 972890), (40, 778312), (64, 486445), (80, 389156), (160, 194578), (271, 114880), (320, 97289), (359, 86720), (542, 57440), (718, 43360), (1084, 28720), (1355, 22976), (1436, 21680), (1795, 17344), (2168, 14360), (2710, 11488), (2872, 10840), (3590, 8672), (4336, 7180), (5420, 5744)]

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