About the Number

81820080

81820079 ← → 81820081

2進数表記:100111000000111100110110000

漢数字表記:八千百八十二万八十

素因数分解:

2 4 × 3 2 × 5 1 × 19 1 × 5981 1

素因数の和:6019
約数の個数: 120
約数和(自身を含む): 289289520
約数和(自身を除く): 207469440

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, 5981, 6840, 11962, 13680, 17943, 23924, 29905, 35886, 47848, 53829, 59810, 71772, 89715, 95696, 107658, 113639, 119620, 143544, 179430, 215316, 227278, 239240, 269145, 287088, 340917, 358860, 430632, 454556, 478480, 538290, 568195, 681834, 717720, 861264, 909112, 1022751, 1076580, 1136390, 1363668, 1435440, 1704585, 1818224, 2045502, 2153160, 2272780, 2727336, 3409170, 4091004, 4306320, 4545560, 5113755, 5454672, 6818340, 8182008, 9091120, 10227510, 13636680, 16364016, 20455020, 27273360, 40910040, 81820080]

約数ペア:
[(1, 81820080), (2, 40910040), (3, 27273360), (4, 20455020), (5, 16364016), (6, 13636680), (8, 10227510), (9, 9091120), (10, 8182008), (12, 6818340), (15, 5454672), (16, 5113755), (18, 4545560), (19, 4306320), (20, 4091004), (24, 3409170), (30, 2727336), (36, 2272780), (38, 2153160), (40, 2045502), (45, 1818224), (48, 1704585), (57, 1435440), (60, 1363668), (72, 1136390), (76, 1076580), (80, 1022751), (90, 909112), (95, 861264), (114, 717720), (120, 681834), (144, 568195), (152, 538290), (171, 478480), (180, 454556), (190, 430632), (228, 358860), (240, 340917), (285, 287088), (304, 269145), (342, 239240), (360, 227278), (380, 215316), (456, 179430), (570, 143544), (684, 119620), (720, 113639), (760, 107658), (855, 95696), (912, 89715), (1140, 71772), (1368, 59810), (1520, 53829), (1710, 47848), (2280, 35886), (2736, 29905), (3420, 23924), (4560, 17943), (5981, 13680), (6840, 11962)]

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