18289620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:214

約数の個数: 144

約数和(自身を含む): 60540480

約数和(自身を除く): 42250860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 43, 45, 51, 60, 68, 85, 86, 90, 102, 129, 139, 153, 170, 172, 180, 204, 215, 255, 258, 278, 306, 340, 387, 417, 430, 510, 516, 556, 612, 645, 695, 731, 765, 774, 834, 860, 1020, 1251, 1290, 1390, 1462, 1530, 1548, 1668, 1935, 2085, 2193, 2363, 2502, 2580, 2780, 2924, 3060, 3655, 3870, 4170, 4386, 4726, 5004, 5977, 6255, 6579, 7089, 7310, 7740, 8340, 8772, 9452, 10965, 11815, 11954, 12510, 13158, 14178, 14620, 17931, 21267, 21930, 23630, 23908, 25020, 26316, 28356, 29885, 32895, 35445, 35862, 42534, 43860, 47260, 53793, 59770, 65790, 70890, 71724, 85068, 89655, 101609, 106335, 107586, 119540, 131580, 141780, 179310, 203218, 212670, 215172, 268965, 304827, 358620, 406436, 425340, 508045, 537930, 609654, 914481, 1016090, 1075860, 1219308, 1524135, 1828962, 2032180, 3048270, 3657924, 4572405, 6096540, 9144810, 18289620]

約数ペア:

[(1, 18289620), (2, 9144810), (3, 6096540), (4, 4572405), (5, 3657924), (6, 3048270), (9, 2032180), (10, 1828962), (12, 1524135), (15, 1219308), (17, 1075860), (18, 1016090), (20, 914481), (30, 609654), (34, 537930), (36, 508045), (43, 425340), (45, 406436), (51, 358620), (60, 304827), (68, 268965), (85, 215172), (86, 212670), (90, 203218), (102, 179310), (129, 141780), (139, 131580), (153, 119540), (170, 107586), (172, 106335), (180, 101609), (204, 89655), (215, 85068), (255, 71724), (258, 70890), (278, 65790), (306, 59770), (340, 53793), (387, 47260), (417, 43860), (430, 42534), (510, 35862), (516, 35445), (556, 32895), (612, 29885), (645, 28356), (695, 26316), (731, 25020), (765, 23908), (774, 23630), (834, 21930), (860, 21267), (1020, 17931), (1251, 14620), (1290, 14178), (1390, 13158), (1462, 12510), (1530, 11954), (1548, 11815), (1668, 10965), (1935, 9452), (2085, 8772), (2193, 8340), (2363, 7740), (2502, 7310), (2580, 7089), (2780, 6579), (2924, 6255), (3060, 5977), (3655, 5004), (3870, 4726), (4170, 4386)]