About the Number

389931480

389931479 ← → 389931481

2進数表記:10111001111011110000111011000

漢数字表記:三億八千九百九十三万千四百八十

素因数分解:

2 3 × 3 2 × 5 1 × 157 1 × 6899 1

素因数の和:7073
約数の個数: 96
約数和(自身を含む): 1275534000
約数和(自身を除く): 885602520

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 157, 180, 314, 360, 471, 628, 785, 942, 1256, 1413, 1570, 1884, 2355, 2826, 3140, 3768, 4710, 5652, 6280, 6899, 7065, 9420, 11304, 13798, 14130, 18840, 20697, 27596, 28260, 34495, 41394, 55192, 56520, 62091, 68990, 82788, 103485, 124182, 137980, 165576, 206970, 248364, 275960, 310455, 413940, 496728, 620910, 827880, 1083143, 1241820, 2166286, 2483640, 3249429, 4332572, 5415715, 6498858, 8665144, 9748287, 10831430, 12997716, 16247145, 19496574, 21662860, 25995432, 32494290, 38993148, 43325720, 48741435, 64988580, 77986296, 97482870, 129977160, 194965740, 389931480]

約数ペア:
[(1, 389931480), (2, 194965740), (3, 129977160), (4, 97482870), (5, 77986296), (6, 64988580), (8, 48741435), (9, 43325720), (10, 38993148), (12, 32494290), (15, 25995432), (18, 21662860), (20, 19496574), (24, 16247145), (30, 12997716), (36, 10831430), (40, 9748287), (45, 8665144), (60, 6498858), (72, 5415715), (90, 4332572), (120, 3249429), (157, 2483640), (180, 2166286), (314, 1241820), (360, 1083143), (471, 827880), (628, 620910), (785, 496728), (942, 413940), (1256, 310455), (1413, 275960), (1570, 248364), (1884, 206970), (2355, 165576), (2826, 137980), (3140, 124182), (3768, 103485), (4710, 82788), (5652, 68990), (6280, 62091), (6899, 56520), (7065, 55192), (9420, 41394), (11304, 34495), (13798, 28260), (14130, 27596), (18840, 20697)]

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