About the Number

216380640

216380639 ← → 216380641

2進数表記:1100111001011011010011100000

漢数字表記:二億千六百三十八万六百四十

素因数分解:

2 5 × 3 1 × 5 1 × 7 1 × 64399 1

素因数の和:64424
約数の個数: 96
約数和(自身を含む): 778982400
約数和(自身を除く): 562601760

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 64399, 128798, 193197, 257596, 321995, 386394, 450793, 515192, 643990, 772788, 901586, 965985, 1030384, 1287980, 1352379, 1545576, 1803172, 1931970, 2060768, 2253965, 2575960, 2704758, 3091152, 3606344, 3863940, 4507930, 5151920, 5409516, 6182304, 6761895, 7212688, 7727880, 9015860, 10303840, 10819032, 13523790, 14425376, 15455760, 18031720, 21638064, 27047580, 30911520, 36063440, 43276128, 54095160, 72126880, 108190320, 216380640]

約数ペア:
[(1, 216380640), (2, 108190320), (3, 72126880), (4, 54095160), (5, 43276128), (6, 36063440), (7, 30911520), (8, 27047580), (10, 21638064), (12, 18031720), (14, 15455760), (15, 14425376), (16, 13523790), (20, 10819032), (21, 10303840), (24, 9015860), (28, 7727880), (30, 7212688), (32, 6761895), (35, 6182304), (40, 5409516), (42, 5151920), (48, 4507930), (56, 3863940), (60, 3606344), (70, 3091152), (80, 2704758), (84, 2575960), (96, 2253965), (105, 2060768), (112, 1931970), (120, 1803172), (140, 1545576), (160, 1352379), (168, 1287980), (210, 1030384), (224, 965985), (240, 901586), (280, 772788), (336, 643990), (420, 515192), (480, 450793), (560, 386394), (672, 321995), (840, 257596), (1120, 193197), (1680, 128798), (3360, 64399)]

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