278612880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12757}}^1$

素因数の和:12793

約数の個数: 160

約数和(自身を含む): 1063098624

約数和(自身を除く): 784485744

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 104, 105, 112, 120, 130, 140, 156, 168, 182, 195, 208, 210, 240, 260, 273, 280, 312, 336, 364, 390, 420, 455, 520, 546, 560, 624, 728, 780, 840, 910, 1040, 1092, 1365, 1456, 1560, 1680, 1820, 2184, 2730, 3120, 3640, 4368, 5460, 7280, 10920, 12757, 21840, 25514, 38271, 51028, 63785, 76542, 89299, 102056, 127570, 153084, 165841, 178598, 191355, 204112, 255140, 267897, 306168, 331682, 357196, 382710, 446495, 497523, 510280, 535794, 612336, 663364, 714392, 765420, 829205, 892990, 995046, 1020560, 1071588, 1160887, 1326728, 1339485, 1428784, 1530840, 1658410, 1785980, 1990092, 2143176, 2321774, 2487615, 2653456, 2678970, 3061680, 3316820, 3482661, 3571960, 3980184, 4286352, 4643548, 4975230, 5357940, 5804435, 6633640, 6965322, 7143920, 7960368, 9287096, 9950460, 10715880, 11608870, 13267280, 13930644, 17413305, 18574192, 19900920, 21431760, 23217740, 27861288, 34826610, 39801840, 46435480, 55722576, 69653220, 92870960, 139306440, 278612880]

約数ペア:

[(1, 278612880), (2, 139306440), (3, 92870960), (4, 69653220), (5, 55722576), (6, 46435480), (7, 39801840), (8, 34826610), (10, 27861288), (12, 23217740), (13, 21431760), (14, 19900920), (15, 18574192), (16, 17413305), (20, 13930644), (21, 13267280), (24, 11608870), (26, 10715880), (28, 9950460), (30, 9287096), (35, 7960368), (39, 7143920), (40, 6965322), (42, 6633640), (48, 5804435), (52, 5357940), (56, 4975230), (60, 4643548), (65, 4286352), (70, 3980184), (78, 3571960), (80, 3482661), (84, 3316820), (91, 3061680), (104, 2678970), (105, 2653456), (112, 2487615), (120, 2321774), (130, 2143176), (140, 1990092), (156, 1785980), (168, 1658410), (182, 1530840), (195, 1428784), (208, 1339485), (210, 1326728), (240, 1160887), (260, 1071588), (273, 1020560), (280, 995046), (312, 892990), (336, 829205), (364, 765420), (390, 714392), (420, 663364), (455, 612336), (520, 535794), (546, 510280), (560, 497523), (624, 446495), (728, 382710), (780, 357196), (840, 331682), (910, 306168), (1040, 267897), (1092, 255140), (1365, 204112), (1456, 191355), (1560, 178598), (1680, 165841), (1820, 153084), (2184, 127570), (2730, 102056), (3120, 89299), (3640, 76542), (4368, 63785), (5460, 51028), (7280, 38271), (10920, 25514), (12757, 21840)]