87867640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:293

約数の個数: 128

約数和(自身を含む): 238878720

約数和(自身を除く): 151011080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 53, 56, 62, 70, 106, 124, 140, 155, 191, 212, 217, 248, 265, 280, 310, 371, 382, 424, 434, 530, 620, 742, 764, 868, 955, 1060, 1085, 1240, 1337, 1484, 1528, 1643, 1736, 1855, 1910, 2120, 2170, 2674, 2968, 3286, 3710, 3820, 4340, 5348, 5921, 6572, 6685, 7420, 7640, 8215, 8680, 10123, 10696, 11501, 11842, 13144, 13370, 14840, 16430, 20246, 23002, 23684, 26740, 29605, 32860, 40492, 41447, 46004, 47368, 50615, 53480, 57505, 59210, 65720, 70861, 80984, 82894, 92008, 101230, 115010, 118420, 141722, 165788, 202460, 207235, 230020, 236840, 283444, 313813, 331576, 354305, 404920, 414470, 460040, 566888, 627626, 708610, 828940, 1255252, 1417220, 1569065, 1657880, 2196691, 2510504, 2834440, 3138130, 4393382, 6276260, 8786764, 10983455, 12552520, 17573528, 21966910, 43933820, 87867640]

約数ペア:

[(1, 87867640), (2, 43933820), (4, 21966910), (5, 17573528), (7, 12552520), (8, 10983455), (10, 8786764), (14, 6276260), (20, 4393382), (28, 3138130), (31, 2834440), (35, 2510504), (40, 2196691), (53, 1657880), (56, 1569065), (62, 1417220), (70, 1255252), (106, 828940), (124, 708610), (140, 627626), (155, 566888), (191, 460040), (212, 414470), (217, 404920), (248, 354305), (265, 331576), (280, 313813), (310, 283444), (371, 236840), (382, 230020), (424, 207235), (434, 202460), (530, 165788), (620, 141722), (742, 118420), (764, 115010), (868, 101230), (955, 92008), (1060, 82894), (1085, 80984), (1240, 70861), (1337, 65720), (1484, 59210), (1528, 57505), (1643, 53480), (1736, 50615), (1855, 47368), (1910, 46004), (2120, 41447), (2170, 40492), (2674, 32860), (2968, 29605), (3286, 26740), (3710, 23684), (3820, 23002), (4340, 20246), (5348, 16430), (5921, 14840), (6572, 13370), (6685, 13144), (7420, 11842), (7640, 11501), (8215, 10696), (8680, 10123)]