About the Number

8420640

8420639 ← → 8420641

2進数表記:100000000111110100100000

漢数字表記:八百四十二万六百四十

素因数分解:

2 5 × 3 1 × 5 1 × 53 1 × 331 1

素因数の和:402
約数の個数: 96
約数和(自身を含む): 27107136
約数和(自身を除く): 18686496

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 53, 60, 80, 96, 106, 120, 159, 160, 212, 240, 265, 318, 331, 424, 480, 530, 636, 662, 795, 848, 993, 1060, 1272, 1324, 1590, 1655, 1696, 1986, 2120, 2544, 2648, 3180, 3310, 3972, 4240, 4965, 5088, 5296, 6360, 6620, 7944, 8480, 9930, 10592, 12720, 13240, 15888, 17543, 19860, 25440, 26480, 31776, 35086, 39720, 52629, 52960, 70172, 79440, 87715, 105258, 140344, 158880, 175430, 210516, 263145, 280688, 350860, 421032, 526290, 561376, 701720, 842064, 1052580, 1403440, 1684128, 2105160, 2806880, 4210320, 8420640]

約数ペア:
[(1, 8420640), (2, 4210320), (3, 2806880), (4, 2105160), (5, 1684128), (6, 1403440), (8, 1052580), (10, 842064), (12, 701720), (15, 561376), (16, 526290), (20, 421032), (24, 350860), (30, 280688), (32, 263145), (40, 210516), (48, 175430), (53, 158880), (60, 140344), (80, 105258), (96, 87715), (106, 79440), (120, 70172), (159, 52960), (160, 52629), (212, 39720), (240, 35086), (265, 31776), (318, 26480), (331, 25440), (424, 19860), (480, 17543), (530, 15888), (636, 13240), (662, 12720), (795, 10592), (848, 9930), (993, 8480), (1060, 7944), (1272, 6620), (1324, 6360), (1590, 5296), (1655, 5088), (1696, 4965), (1986, 4240), (2120, 3972), (2544, 3310), (2648, 3180)]

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