About the Number

1217201280

1217201279 ← → 1217201281

2進数表記:1001000100011010000010010000000

漢数字表記:十二億千七百二十万千二百八十

素因数分解:

2 7 × 3 1 × 5 1 × 71 1 × 8929 1

素因数の和:9022
約数の個数: 128
約数和(自身を含む): 3934915200
約数和(自身を除く): 2717713920

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 71, 80, 96, 120, 128, 142, 160, 192, 213, 240, 284, 320, 355, 384, 426, 480, 568, 640, 710, 852, 960, 1065, 1136, 1420, 1704, 1920, 2130, 2272, 2840, 3408, 4260, 4544, 5680, 6816, 8520, 8929, 9088, 11360, 13632, 17040, 17858, 22720, 26787, 27264, 34080, 35716, 44645, 45440, 53574, 68160, 71432, 89290, 107148, 133935, 136320, 142864, 178580, 214296, 267870, 285728, 357160, 428592, 535740, 571456, 633959, 714320, 857184, 1071480, 1142912, 1267918, 1428640, 1714368, 1901877, 2142960, 2535836, 2857280, 3169795, 3428736, 3803754, 4285920, 5071672, 5714560, 6339590, 7607508, 8571840, 9509385, 10143344, 12679180, 15215016, 17143680, 19018770, 20286688, 25358360, 30430032, 38037540, 40573376, 50716720, 60860064, 76075080, 81146752, 101433440, 121720128, 152150160, 202866880, 243440256, 304300320, 405733760, 608600640, 1217201280]

約数ペア:
[(1, 1217201280), (2, 608600640), (3, 405733760), (4, 304300320), (5, 243440256), (6, 202866880), (8, 152150160), (10, 121720128), (12, 101433440), (15, 81146752), (16, 76075080), (20, 60860064), (24, 50716720), (30, 40573376), (32, 38037540), (40, 30430032), (48, 25358360), (60, 20286688), (64, 19018770), (71, 17143680), (80, 15215016), (96, 12679180), (120, 10143344), (128, 9509385), (142, 8571840), (160, 7607508), (192, 6339590), (213, 5714560), (240, 5071672), (284, 4285920), (320, 3803754), (355, 3428736), (384, 3169795), (426, 2857280), (480, 2535836), (568, 2142960), (640, 1901877), (710, 1714368), (852, 1428640), (960, 1267918), (1065, 1142912), (1136, 1071480), (1420, 857184), (1704, 714320), (1920, 633959), (2130, 571456), (2272, 535740), (2840, 428592), (3408, 357160), (4260, 285728), (4544, 267870), (5680, 214296), (6816, 178580), (8520, 142864), (8929, 136320), (9088, 133935), (11360, 107148), (13632, 89290), (17040, 71432), (17858, 68160), (22720, 53574), (26787, 45440), (27264, 44645), (34080, 35716)]

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