18981270

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1$

素因数の和:128

約数の個数: 192

約数和(自身を含む): 64350720

約数和(自身を除く): 45369450

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 27, 30, 33, 35, 42, 45, 54, 55, 63, 66, 70, 77, 83, 90, 99, 105, 110, 121, 126, 135, 154, 165, 166, 189, 198, 210, 231, 242, 249, 270, 297, 315, 330, 363, 378, 385, 415, 462, 495, 498, 581, 594, 605, 630, 693, 726, 747, 770, 830, 847, 913, 945, 990, 1089, 1155, 1162, 1210, 1245, 1386, 1485, 1494, 1694, 1743, 1815, 1826, 1890, 2079, 2178, 2241, 2310, 2490, 2541, 2739, 2905, 2970, 3267, 3465, 3486, 3630, 3735, 4158, 4235, 4482, 4565, 5082, 5229, 5445, 5478, 5810, 6391, 6534, 6930, 7470, 7623, 8217, 8470, 8715, 9130, 10043, 10395, 10458, 10890, 11205, 12705, 12782, 13695, 15246, 15687, 16335, 16434, 17430, 19173, 20086, 20790, 22410, 22869, 24651, 25410, 26145, 27390, 30129, 31374, 31955, 32670, 38115, 38346, 41085, 45738, 49302, 50215, 52290, 57519, 60258, 63910, 70301, 76230, 78435, 82170, 90387, 95865, 100430, 114345, 115038, 123255, 140602, 150645, 156870, 172557, 180774, 191730, 210903, 228690, 246510, 271161, 287595, 301290, 345114, 351505, 421806, 451935, 542322, 575190, 632709, 703010, 862785, 903870, 1054515, 1265418, 1355805, 1725570, 1898127, 2109030, 2711610, 3163545, 3796254, 6327090, 9490635, 18981270]

約数ペア:

[(1, 18981270), (2, 9490635), (3, 6327090), (5, 3796254), (6, 3163545), (7, 2711610), (9, 2109030), (10, 1898127), (11, 1725570), (14, 1355805), (15, 1265418), (18, 1054515), (21, 903870), (22, 862785), (27, 703010), (30, 632709), (33, 575190), (35, 542322), (42, 451935), (45, 421806), (54, 351505), (55, 345114), (63, 301290), (66, 287595), (70, 271161), (77, 246510), (83, 228690), (90, 210903), (99, 191730), (105, 180774), (110, 172557), (121, 156870), (126, 150645), (135, 140602), (154, 123255), (165, 115038), (166, 114345), (189, 100430), (198, 95865), (210, 90387), (231, 82170), (242, 78435), (249, 76230), (270, 70301), (297, 63910), (315, 60258), (330, 57519), (363, 52290), (378, 50215), (385, 49302), (415, 45738), (462, 41085), (495, 38346), (498, 38115), (581, 32670), (594, 31955), (605, 31374), (630, 30129), (693, 27390), (726, 26145), (747, 25410), (770, 24651), (830, 22869), (847, 22410), (913, 20790), (945, 20086), (990, 19173), (1089, 17430), (1155, 16434), (1162, 16335), (1210, 15687), (1245, 15246), (1386, 13695), (1485, 12782), (1494, 12705), (1694, 11205), (1743, 10890), (1815, 10458), (1826, 10395), (1890, 10043), (2079, 9130), (2178, 8715), (2241, 8470), (2310, 8217), (2490, 7623), (2541, 7470), (2739, 6930), (2905, 6534), (2970, 6391), (3267, 5810), (3465, 5478), (3486, 5445), (3630, 5229), (3735, 5082), (4158, 4565), (4235, 4482)]