128274160

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{761}}^1$

素因数の和:831

約数の個数: 120

約数和(自身を含む): 355463856

約数和(自身を除く): 227189696

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 49, 56, 70, 80, 86, 98, 112, 140, 172, 196, 215, 245, 280, 301, 344, 392, 430, 490, 560, 602, 688, 761, 784, 860, 980, 1204, 1505, 1522, 1720, 1960, 2107, 2408, 3010, 3044, 3440, 3805, 3920, 4214, 4816, 5327, 6020, 6088, 7610, 8428, 10535, 10654, 12040, 12176, 15220, 16856, 21070, 21308, 24080, 26635, 30440, 32723, 33712, 37289, 42140, 42616, 53270, 60880, 65446, 74578, 84280, 85232, 106540, 130892, 149156, 163615, 168560, 186445, 213080, 229061, 261784, 298312, 327230, 372890, 426160, 458122, 523568, 596624, 654460, 745780, 916244, 1145305, 1308920, 1491560, 1603427, 1832488, 2290610, 2617840, 2983120, 3206854, 3664976, 4581220, 6413708, 8017135, 9162440, 12827416, 16034270, 18324880, 25654832, 32068540, 64137080, 128274160]

約数ペア:

[(1, 128274160), (2, 64137080), (4, 32068540), (5, 25654832), (7, 18324880), (8, 16034270), (10, 12827416), (14, 9162440), (16, 8017135), (20, 6413708), (28, 4581220), (35, 3664976), (40, 3206854), (43, 2983120), (49, 2617840), (56, 2290610), (70, 1832488), (80, 1603427), (86, 1491560), (98, 1308920), (112, 1145305), (140, 916244), (172, 745780), (196, 654460), (215, 596624), (245, 523568), (280, 458122), (301, 426160), (344, 372890), (392, 327230), (430, 298312), (490, 261784), (560, 229061), (602, 213080), (688, 186445), (761, 168560), (784, 163615), (860, 149156), (980, 130892), (1204, 106540), (1505, 85232), (1522, 84280), (1720, 74578), (1960, 65446), (2107, 60880), (2408, 53270), (3010, 42616), (3044, 42140), (3440, 37289), (3805, 33712), (3920, 32723), (4214, 30440), (4816, 26635), (5327, 24080), (6020, 21308), (6088, 21070), (7610, 16856), (8428, 15220), (10535, 12176), (10654, 12040)]