18734240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:454

約数の個数: 96

約数和(自身を含む): 51891840

約数和(自身を除く): 33157600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 70, 80, 86, 112, 140, 160, 172, 215, 224, 280, 301, 344, 389, 430, 560, 602, 688, 778, 860, 1120, 1204, 1376, 1505, 1556, 1720, 1945, 2408, 2723, 3010, 3112, 3440, 3890, 4816, 5446, 6020, 6224, 6880, 7780, 9632, 10892, 12040, 12448, 13615, 15560, 16727, 21784, 24080, 27230, 31120, 33454, 43568, 48160, 54460, 62240, 66908, 83635, 87136, 108920, 117089, 133816, 167270, 217840, 234178, 267632, 334540, 435680, 468356, 535264, 585445, 669080, 936712, 1170890, 1338160, 1873424, 2341780, 2676320, 3746848, 4683560, 9367120, 18734240]

約数ペア:

[(1, 18734240), (2, 9367120), (4, 4683560), (5, 3746848), (7, 2676320), (8, 2341780), (10, 1873424), (14, 1338160), (16, 1170890), (20, 936712), (28, 669080), (32, 585445), (35, 535264), (40, 468356), (43, 435680), (56, 334540), (70, 267632), (80, 234178), (86, 217840), (112, 167270), (140, 133816), (160, 117089), (172, 108920), (215, 87136), (224, 83635), (280, 66908), (301, 62240), (344, 54460), (389, 48160), (430, 43568), (560, 33454), (602, 31120), (688, 27230), (778, 24080), (860, 21784), (1120, 16727), (1204, 15560), (1376, 13615), (1505, 12448), (1556, 12040), (1720, 10892), (1945, 9632), (2408, 7780), (2723, 6880), (3010, 6224), (3112, 6020), (3440, 5446), (3890, 4816)]