42808040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:195

約数の個数: 128

約数和(自身を含む): 114307200

約数和(自身を除く): 71499160

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 59, 68, 85, 88, 97, 110, 118, 136, 170, 187, 194, 220, 236, 295, 340, 374, 388, 440, 472, 485, 590, 649, 680, 748, 776, 935, 970, 1003, 1067, 1180, 1298, 1496, 1649, 1870, 1940, 2006, 2134, 2360, 2596, 3245, 3298, 3740, 3880, 4012, 4268, 5015, 5192, 5335, 5723, 6490, 6596, 7480, 8024, 8245, 8536, 10030, 10670, 11033, 11446, 12980, 13192, 16490, 18139, 20060, 21340, 22066, 22892, 25960, 28615, 32980, 36278, 40120, 42680, 44132, 45784, 55165, 57230, 62953, 65960, 72556, 88264, 90695, 97291, 110330, 114460, 125906, 145112, 181390, 194582, 220660, 228920, 251812, 314765, 362780, 389164, 441320, 486455, 503624, 629530, 725560, 778328, 972910, 1070201, 1259060, 1945820, 2140402, 2518120, 3891640, 4280804, 5351005, 8561608, 10702010, 21404020, 42808040]

約数ペア:

[(1, 42808040), (2, 21404020), (4, 10702010), (5, 8561608), (8, 5351005), (10, 4280804), (11, 3891640), (17, 2518120), (20, 2140402), (22, 1945820), (34, 1259060), (40, 1070201), (44, 972910), (55, 778328), (59, 725560), (68, 629530), (85, 503624), (88, 486455), (97, 441320), (110, 389164), (118, 362780), (136, 314765), (170, 251812), (187, 228920), (194, 220660), (220, 194582), (236, 181390), (295, 145112), (340, 125906), (374, 114460), (388, 110330), (440, 97291), (472, 90695), (485, 88264), (590, 72556), (649, 65960), (680, 62953), (748, 57230), (776, 55165), (935, 45784), (970, 44132), (1003, 42680), (1067, 40120), (1180, 36278), (1298, 32980), (1496, 28615), (1649, 25960), (1870, 22892), (1940, 22066), (2006, 21340), (2134, 20060), (2360, 18139), (2596, 16490), (3245, 13192), (3298, 12980), (3740, 11446), (3880, 11033), (4012, 10670), (4268, 10030), (5015, 8536), (5192, 8245), (5335, 8024), (5723, 7480), (6490, 6596)]