20560140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6719}}^1$

素因数の和:6751

約数の個数: 72

約数和(自身を含む): 66044160

約数和(自身を除く): 45484020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 6719, 13438, 20157, 26876, 33595, 40314, 60471, 67190, 80628, 100785, 114223, 120942, 134380, 201570, 228446, 241884, 302355, 342669, 403140, 456892, 571115, 604710, 685338, 1028007, 1142230, 1209420, 1370676, 1713345, 2056014, 2284460, 3426690, 4112028, 5140035, 6853380, 10280070, 20560140]

約数ペア:

[(1, 20560140), (2, 10280070), (3, 6853380), (4, 5140035), (5, 4112028), (6, 3426690), (9, 2284460), (10, 2056014), (12, 1713345), (15, 1370676), (17, 1209420), (18, 1142230), (20, 1028007), (30, 685338), (34, 604710), (36, 571115), (45, 456892), (51, 403140), (60, 342669), (68, 302355), (85, 241884), (90, 228446), (102, 201570), (153, 134380), (170, 120942), (180, 114223), (204, 100785), (255, 80628), (306, 67190), (340, 60471), (510, 40314), (612, 33595), (765, 26876), (1020, 20157), (1530, 13438), (3060, 6719)]