320440890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1$

素因数の和:210

約数の個数: 256

約数和(自身を含む): 1036800000

約数和(自身を除く): 716359110

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 19, 21, 22, 30, 33, 35, 38, 42, 49, 55, 57, 66, 70, 77, 95, 98, 105, 110, 114, 133, 147, 149, 154, 165, 190, 209, 210, 231, 245, 266, 285, 294, 298, 330, 343, 385, 399, 418, 447, 462, 490, 539, 570, 627, 665, 686, 735, 745, 770, 798, 894, 931, 1029, 1043, 1045, 1078, 1155, 1254, 1330, 1463, 1470, 1490, 1617, 1639, 1715, 1862, 1995, 2058, 2086, 2090, 2235, 2310, 2695, 2793, 2831, 2926, 3129, 3135, 3234, 3278, 3430, 3773, 3990, 4389, 4470, 4655, 4917, 5145, 5215, 5390, 5586, 5662, 6258, 6270, 6517, 7301, 7315, 7546, 8085, 8195, 8493, 8778, 9310, 9834, 10241, 10290, 10430, 11319, 11473, 13034, 13965, 14155, 14602, 14630, 15645, 16170, 16390, 16986, 18865, 19551, 19817, 20482, 21903, 21945, 22638, 22946, 24585, 27930, 28310, 30723, 31141, 31290, 32585, 34419, 36505, 37730, 39102, 39634, 42465, 43806, 43890, 49170, 51107, 51205, 56595, 57365, 59451, 61446, 62282, 65170, 68838, 71687, 73010, 80311, 84930, 93423, 97755, 99085, 102214, 102410, 109515, 113190, 114730, 118902, 138719, 143374, 153321, 153615, 155705, 160622, 172095, 186846, 195510, 198170, 215061, 217987, 219030, 240933, 255535, 277438, 297255, 306642, 307230, 311410, 344190, 358435, 401555, 416157, 430122, 435974, 467115, 481866, 511070, 562177, 594510, 653961, 693595, 716870, 766605, 803110, 832314, 934230, 971033, 1075305, 1089935, 1124354, 1204665, 1307922, 1387190, 1525909, 1533210, 1686531, 1942066, 2080785, 2150610, 2179870, 2409330, 2810885, 2913099, 3051818, 3269805, 3373062, 4161570, 4577727, 4855165, 5621770, 5826198, 6539610, 7629545, 8432655, 9155454, 9710330, 10681363, 14565495, 15259090, 16865310, 21362726, 22888635, 29130990, 32044089, 45777270, 53406815, 64088178, 106813630, 160220445, 320440890]

約数ペア:

[(1, 320440890), (2, 160220445), (3, 106813630), (5, 64088178), (6, 53406815), (7, 45777270), (10, 32044089), (11, 29130990), (14, 22888635), (15, 21362726), (19, 16865310), (21, 15259090), (22, 14565495), (30, 10681363), (33, 9710330), (35, 9155454), (38, 8432655), (42, 7629545), (49, 6539610), (55, 5826198), (57, 5621770), (66, 4855165), (70, 4577727), (77, 4161570), (95, 3373062), (98, 3269805), (105, 3051818), (110, 2913099), (114, 2810885), (133, 2409330), (147, 2179870), (149, 2150610), (154, 2080785), (165, 1942066), (190, 1686531), (209, 1533210), (210, 1525909), (231, 1387190), (245, 1307922), (266, 1204665), (285, 1124354), (294, 1089935), (298, 1075305), (330, 971033), (343, 934230), (385, 832314), (399, 803110), (418, 766605), (447, 716870), (462, 693595), (490, 653961), (539, 594510), (570, 562177), (627, 511070), (665, 481866), (686, 467115), (735, 435974), (745, 430122), (770, 416157), (798, 401555), (894, 358435), (931, 344190), (1029, 311410), (1043, 307230), (1045, 306642), (1078, 297255), (1155, 277438), (1254, 255535), (1330, 240933), (1463, 219030), (1470, 217987), (1490, 215061), (1617, 198170), (1639, 195510), (1715, 186846), (1862, 172095), (1995, 160622), (2058, 155705), (2086, 153615), (2090, 153321), (2235, 143374), (2310, 138719), (2695, 118902), (2793, 114730), (2831, 113190), (2926, 109515), (3129, 102410), (3135, 102214), (3234, 99085), (3278, 97755), (3430, 93423), (3773, 84930), (3990, 80311), (4389, 73010), (4470, 71687), (4655, 68838), (4917, 65170), (5145, 62282), (5215, 61446), (5390, 59451), (5586, 57365), (5662, 56595), (6258, 51205), (6270, 51107), (6517, 49170), (7301, 43890), (7315, 43806), (7546, 42465), (8085, 39634), (8195, 39102), (8493, 37730), (8778, 36505), (9310, 34419), (9834, 32585), (10241, 31290), (10290, 31141), (10430, 30723), (11319, 28310), (11473, 27930), (13034, 24585), (13965, 22946), (14155, 22638), (14602, 21945), (14630, 21903), (15645, 20482), (16170, 19817), (16390, 19551), (16986, 18865)]