About the Number

1200128640

1200128639 ← → 1200128641

2進数表記:1000111100010001000001010000000

漢数字表記:十二億十二万八千六百四十

素因数分解:

2 7 × 3 1 × 5 1 × 61 1 × 10247 1

素因数の和:10330
約数の個数: 128
約数和(自身を含む): 3888501120
約数和(自身を除く): 2688372480

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 64, 80, 96, 120, 122, 128, 160, 183, 192, 240, 244, 305, 320, 366, 384, 480, 488, 610, 640, 732, 915, 960, 976, 1220, 1464, 1830, 1920, 1952, 2440, 2928, 3660, 3904, 4880, 5856, 7320, 7808, 9760, 10247, 11712, 14640, 19520, 20494, 23424, 29280, 30741, 39040, 40988, 51235, 58560, 61482, 81976, 102470, 117120, 122964, 153705, 163952, 204940, 245928, 307410, 327904, 409880, 491856, 614820, 625067, 655808, 819760, 983712, 1229640, 1250134, 1311616, 1639520, 1875201, 1967424, 2459280, 2500268, 3125335, 3279040, 3750402, 3934848, 4918560, 5000536, 6250670, 6558080, 7500804, 9376005, 9837120, 10001072, 12501340, 15001608, 18752010, 19674240, 20002144, 25002680, 30003216, 37504020, 40004288, 50005360, 60006432, 75008040, 80008576, 100010720, 120012864, 150016080, 200021440, 240025728, 300032160, 400042880, 600064320, 1200128640]

約数ペア:
[(1, 1200128640), (2, 600064320), (3, 400042880), (4, 300032160), (5, 240025728), (6, 200021440), (8, 150016080), (10, 120012864), (12, 100010720), (15, 80008576), (16, 75008040), (20, 60006432), (24, 50005360), (30, 40004288), (32, 37504020), (40, 30003216), (48, 25002680), (60, 20002144), (61, 19674240), (64, 18752010), (80, 15001608), (96, 12501340), (120, 10001072), (122, 9837120), (128, 9376005), (160, 7500804), (183, 6558080), (192, 6250670), (240, 5000536), (244, 4918560), (305, 3934848), (320, 3750402), (366, 3279040), (384, 3125335), (480, 2500268), (488, 2459280), (610, 1967424), (640, 1875201), (732, 1639520), (915, 1311616), (960, 1250134), (976, 1229640), (1220, 983712), (1464, 819760), (1830, 655808), (1920, 625067), (1952, 614820), (2440, 491856), (2928, 409880), (3660, 327904), (3904, 307410), (4880, 245928), (5856, 204940), (7320, 163952), (7808, 153705), (9760, 122964), (10247, 117120), (11712, 102470), (14640, 81976), (19520, 61482), (20494, 58560), (23424, 51235), (29280, 40988), (30741, 39040)]

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