16691640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:693

約数の個数: 128

約数和(自身を含む): 59166720

約数和(自身を除く): 42475080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 641, 651, 744, 840, 868, 930, 1085, 1240, 1282, 1302, 1736, 1860, 1923, 2170, 2564, 2604, 3205, 3255, 3720, 3846, 4340, 4487, 5128, 5208, 6410, 6510, 7692, 8680, 8974, 9615, 12820, 13020, 13461, 15384, 17948, 19230, 19871, 22435, 25640, 26040, 26922, 35896, 38460, 39742, 44870, 53844, 59613, 67305, 76920, 79484, 89740, 99355, 107688, 119226, 134610, 139097, 158968, 179480, 198710, 238452, 269220, 278194, 298065, 397420, 417291, 476904, 538440, 556388, 596130, 695485, 794840, 834582, 1112776, 1192260, 1390970, 1669164, 2086455, 2384520, 2781940, 3338328, 4172910, 5563880, 8345820, 16691640]

約数ペア:

[(1, 16691640), (2, 8345820), (3, 5563880), (4, 4172910), (5, 3338328), (6, 2781940), (7, 2384520), (8, 2086455), (10, 1669164), (12, 1390970), (14, 1192260), (15, 1112776), (20, 834582), (21, 794840), (24, 695485), (28, 596130), (30, 556388), (31, 538440), (35, 476904), (40, 417291), (42, 397420), (56, 298065), (60, 278194), (62, 269220), (70, 238452), (84, 198710), (93, 179480), (105, 158968), (120, 139097), (124, 134610), (140, 119226), (155, 107688), (168, 99355), (186, 89740), (210, 79484), (217, 76920), (248, 67305), (280, 59613), (310, 53844), (372, 44870), (420, 39742), (434, 38460), (465, 35896), (620, 26922), (641, 26040), (651, 25640), (744, 22435), (840, 19871), (868, 19230), (930, 17948), (1085, 15384), (1240, 13461), (1282, 13020), (1302, 12820), (1736, 9615), (1860, 8974), (1923, 8680), (2170, 7692), (2564, 6510), (2604, 6410), (3205, 5208), (3255, 5128), (3720, 4487), (3846, 4340)]