20766690

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{277}}^1$

素因数の和:321

約数の個数: 144

約数和(自身を含む): 66743352

約数和(自身を除く): 45976662

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 30, 34, 35, 42, 45, 49, 51, 63, 70, 85, 90, 98, 102, 105, 119, 126, 147, 153, 170, 210, 238, 245, 255, 277, 294, 306, 315, 357, 441, 490, 510, 554, 595, 630, 714, 735, 765, 831, 833, 882, 1071, 1190, 1385, 1470, 1530, 1662, 1666, 1785, 1939, 2142, 2205, 2493, 2499, 2770, 3570, 3878, 4155, 4165, 4410, 4709, 4986, 4998, 5355, 5817, 7497, 8310, 8330, 9418, 9695, 10710, 11634, 12465, 12495, 13573, 14127, 14994, 17451, 19390, 23545, 24930, 24990, 27146, 28254, 29085, 32963, 34902, 37485, 40719, 42381, 47090, 58170, 65926, 67865, 70635, 74970, 81438, 84762, 87255, 98889, 122157, 135730, 141270, 164815, 174510, 197778, 203595, 211905, 230741, 244314, 296667, 329630, 407190, 423810, 461482, 494445, 593334, 610785, 692223, 988890, 1153705, 1221570, 1384446, 1483335, 2076669, 2307410, 2966670, 3461115, 4153338, 6922230, 10383345, 20766690]

約数ペア:

[(1, 20766690), (2, 10383345), (3, 6922230), (5, 4153338), (6, 3461115), (7, 2966670), (9, 2307410), (10, 2076669), (14, 1483335), (15, 1384446), (17, 1221570), (18, 1153705), (21, 988890), (30, 692223), (34, 610785), (35, 593334), (42, 494445), (45, 461482), (49, 423810), (51, 407190), (63, 329630), (70, 296667), (85, 244314), (90, 230741), (98, 211905), (102, 203595), (105, 197778), (119, 174510), (126, 164815), (147, 141270), (153, 135730), (170, 122157), (210, 98889), (238, 87255), (245, 84762), (255, 81438), (277, 74970), (294, 70635), (306, 67865), (315, 65926), (357, 58170), (441, 47090), (490, 42381), (510, 40719), (554, 37485), (595, 34902), (630, 32963), (714, 29085), (735, 28254), (765, 27146), (831, 24990), (833, 24930), (882, 23545), (1071, 19390), (1190, 17451), (1385, 14994), (1470, 14127), (1530, 13573), (1662, 12495), (1666, 12465), (1785, 11634), (1939, 10710), (2142, 9695), (2205, 9418), (2493, 8330), (2499, 8310), (2770, 7497), (3570, 5817), (3878, 5355), (4155, 4998), (4165, 4986), (4410, 4709)]