About the Number

30812640

30812639 ← → 30812641

2進数表記:1110101100010100111100000

漢数字表記:三千八十一万二千六百四十

素因数分解:

2 5 × 3 1 × 5 1 × 23 1 × 2791 1

素因数の和:2832
約数の個数: 96
約数和(自身を含む): 101316096
約数和(自身を除く): 70503456

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 69, 80, 92, 96, 115, 120, 138, 160, 184, 230, 240, 276, 345, 368, 460, 480, 552, 690, 736, 920, 1104, 1380, 1840, 2208, 2760, 2791, 3680, 5520, 5582, 8373, 11040, 11164, 13955, 16746, 22328, 27910, 33492, 41865, 44656, 55820, 64193, 66984, 83730, 89312, 111640, 128386, 133968, 167460, 192579, 223280, 256772, 267936, 320965, 334920, 385158, 446560, 513544, 641930, 669840, 770316, 962895, 1027088, 1283860, 1339680, 1540632, 1925790, 2054176, 2567720, 3081264, 3851580, 5135440, 6162528, 7703160, 10270880, 15406320, 30812640]

約数ペア:
[(1, 30812640), (2, 15406320), (3, 10270880), (4, 7703160), (5, 6162528), (6, 5135440), (8, 3851580), (10, 3081264), (12, 2567720), (15, 2054176), (16, 1925790), (20, 1540632), (23, 1339680), (24, 1283860), (30, 1027088), (32, 962895), (40, 770316), (46, 669840), (48, 641930), (60, 513544), (69, 446560), (80, 385158), (92, 334920), (96, 320965), (115, 267936), (120, 256772), (138, 223280), (160, 192579), (184, 167460), (230, 133968), (240, 128386), (276, 111640), (345, 89312), (368, 83730), (460, 66984), (480, 64193), (552, 55820), (690, 44656), (736, 41865), (920, 33492), (1104, 27910), (1380, 22328), (1840, 16746), (2208, 13955), (2760, 11164), (2791, 11040), (3680, 8373), (5520, 5582)]

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