About the Number

402780240

402780239 ← → 402780241

2進数表記:11000000000011111000001010000

漢数字表記:四億二百七十八万二百四十

素因数分解:

2 4 × 3 2 × 5 1 × 19 1 × 29443 1

素因数の和:29481
約数の個数: 120
約数和(自身を含む): 1423911840
約数和(自身を除く): 1021131600

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1520, 1710, 2280, 2736, 3420, 4560, 6840, 13680, 29443, 58886, 88329, 117772, 147215, 176658, 235544, 264987, 294430, 353316, 441645, 471088, 529974, 559417, 588860, 706632, 883290, 1059948, 1118834, 1177720, 1324935, 1413264, 1678251, 1766580, 2119896, 2237668, 2355440, 2649870, 2797085, 3356502, 3533160, 4239792, 4475336, 5034753, 5299740, 5594170, 6713004, 7066320, 8391255, 8950672, 10069506, 10599480, 11188340, 13426008, 16782510, 20139012, 21198960, 22376680, 25173765, 26852016, 33565020, 40278024, 44753360, 50347530, 67130040, 80556048, 100695060, 134260080, 201390120, 402780240]

約数ペア:
[(1, 402780240), (2, 201390120), (3, 134260080), (4, 100695060), (5, 80556048), (6, 67130040), (8, 50347530), (9, 44753360), (10, 40278024), (12, 33565020), (15, 26852016), (16, 25173765), (18, 22376680), (19, 21198960), (20, 20139012), (24, 16782510), (30, 13426008), (36, 11188340), (38, 10599480), (40, 10069506), (45, 8950672), (48, 8391255), (57, 7066320), (60, 6713004), (72, 5594170), (76, 5299740), (80, 5034753), (90, 4475336), (95, 4239792), (114, 3533160), (120, 3356502), (144, 2797085), (152, 2649870), (171, 2355440), (180, 2237668), (190, 2119896), (228, 1766580), (240, 1678251), (285, 1413264), (304, 1324935), (342, 1177720), (360, 1118834), (380, 1059948), (456, 883290), (570, 706632), (684, 588860), (720, 559417), (760, 529974), (855, 471088), (912, 441645), (1140, 353316), (1368, 294430), (1520, 264987), (1710, 235544), (2280, 176658), (2736, 147215), (3420, 117772), (4560, 88329), (6840, 58886), (13680, 29443)]

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