About the Number

81281070

81281069 ← → 81281071

2進数表記:100110110000100000000101110

漢数字表記:八千百二十八万千七十

素因数分解:

2 1 × 3 5 × 5 1 × 13 1 × 31 1 × 83 1

素因数の和:149
約数の個数: 192
約数和(自身を含む): 246564864
約数和(自身を除く): 165283794

約数列:
[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 31, 39, 45, 54, 62, 65, 78, 81, 83, 90, 93, 117, 130, 135, 155, 162, 166, 186, 195, 234, 243, 249, 270, 279, 310, 351, 390, 403, 405, 415, 465, 486, 498, 558, 585, 702, 747, 806, 810, 830, 837, 930, 1053, 1079, 1170, 1209, 1215, 1245, 1395, 1494, 1674, 1755, 2015, 2106, 2158, 2241, 2418, 2430, 2490, 2511, 2573, 2790, 3159, 3237, 3510, 3627, 3735, 4030, 4185, 4482, 5022, 5146, 5265, 5395, 6045, 6318, 6474, 6723, 7254, 7470, 7533, 7719, 8370, 9711, 10530, 10790, 10881, 11205, 12090, 12555, 12865, 13446, 15066, 15438, 15795, 16185, 18135, 19422, 20169, 21762, 22410, 23157, 25110, 25730, 29133, 31590, 32370, 32643, 33449, 33615, 36270, 37665, 38595, 40338, 46314, 48555, 54405, 58266, 65286, 66898, 67230, 69471, 75330, 77190, 87399, 97110, 97929, 100347, 100845, 108810, 115785, 138942, 145665, 163215, 167245, 174798, 195858, 200694, 201690, 208413, 231570, 262197, 291330, 301041, 326430, 334490, 347355, 416826, 436995, 489645, 501735, 524394, 602082, 625239, 694710, 873990, 903123, 979290, 1003470, 1042065, 1250478, 1310985, 1505205, 1806246, 2084130, 2621970, 2709369, 3010410, 3126195, 4515615, 5418738, 6252390, 8128107, 9031230, 13546845, 16256214, 27093690, 40640535, 81281070]

約数ペア:
[(1, 81281070), (2, 40640535), (3, 27093690), (5, 16256214), (6, 13546845), (9, 9031230), (10, 8128107), (13, 6252390), (15, 5418738), (18, 4515615), (26, 3126195), (27, 3010410), (30, 2709369), (31, 2621970), (39, 2084130), (45, 1806246), (54, 1505205), (62, 1310985), (65, 1250478), (78, 1042065), (81, 1003470), (83, 979290), (90, 903123), (93, 873990), (117, 694710), (130, 625239), (135, 602082), (155, 524394), (162, 501735), (166, 489645), (186, 436995), (195, 416826), (234, 347355), (243, 334490), (249, 326430), (270, 301041), (279, 291330), (310, 262197), (351, 231570), (390, 208413), (403, 201690), (405, 200694), (415, 195858), (465, 174798), (486, 167245), (498, 163215), (558, 145665), (585, 138942), (702, 115785), (747, 108810), (806, 100845), (810, 100347), (830, 97929), (837, 97110), (930, 87399), (1053, 77190), (1079, 75330), (1170, 69471), (1209, 67230), (1215, 66898), (1245, 65286), (1395, 58266), (1494, 54405), (1674, 48555), (1755, 46314), (2015, 40338), (2106, 38595), (2158, 37665), (2241, 36270), (2418, 33615), (2430, 33449), (2490, 32643), (2511, 32370), (2573, 31590), (2790, 29133), (3159, 25730), (3237, 25110), (3510, 23157), (3627, 22410), (3735, 21762), (4030, 20169), (4185, 19422), (4482, 18135), (5022, 16185), (5146, 15795), (5265, 15438), (5395, 15066), (6045, 13446), (6318, 12865), (6474, 12555), (6723, 12090), (7254, 11205), (7470, 10881), (7533, 10790), (7719, 10530), (8370, 9711)]

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