219378978

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1$

素因数の和:126

約数の個数: 216

約数和(自身を含む): 640304028

約数和(自身を除く): 420925050

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 19, 21, 26, 38, 39, 42, 49, 53, 57, 63, 78, 91, 98, 106, 114, 117, 126, 133, 147, 159, 171, 182, 234, 247, 266, 273, 294, 318, 342, 361, 371, 399, 441, 477, 494, 546, 637, 689, 722, 741, 742, 798, 819, 882, 931, 954, 1007, 1083, 1113, 1197, 1274, 1378, 1482, 1638, 1729, 1862, 1911, 2014, 2067, 2166, 2223, 2226, 2394, 2527, 2597, 2793, 3021, 3249, 3339, 3458, 3822, 4134, 4446, 4693, 4823, 5054, 5187, 5194, 5586, 5733, 6042, 6201, 6498, 6678, 7049, 7581, 7791, 8379, 9063, 9386, 9646, 10374, 11466, 12103, 12402, 13091, 14079, 14098, 14469, 15162, 15561, 15582, 16758, 17689, 18126, 19133, 21147, 22743, 23373, 24206, 26182, 28158, 28938, 31122, 32851, 33761, 35378, 36309, 38266, 39273, 42237, 42294, 43407, 45486, 46746, 49343, 53067, 57399, 63441, 65702, 67522, 72618, 78546, 84474, 86814, 91637, 98553, 98686, 101283, 106134, 108927, 114798, 117819, 126882, 133931, 148029, 159201, 172197, 183274, 197106, 202566, 217854, 229957, 235638, 248729, 267862, 274911, 295659, 296058, 303849, 318402, 344394, 401793, 444087, 459914, 497458, 549822, 591318, 607698, 641459, 689871, 746187, 803586, 824733, 888174, 937517, 1205379, 1282918, 1379742, 1492374, 1649466, 1741103, 1875034, 1924377, 2069613, 2238561, 2410758, 2812551, 3482206, 3848754, 4139226, 4477122, 5223309, 5625102, 5773131, 8437653, 10446618, 11546262, 12187721, 15669927, 16875306, 24375442, 31339854, 36563163, 73126326, 109689489, 219378978]

約数ペア:

[(1, 219378978), (2, 109689489), (3, 73126326), (6, 36563163), (7, 31339854), (9, 24375442), (13, 16875306), (14, 15669927), (18, 12187721), (19, 11546262), (21, 10446618), (26, 8437653), (38, 5773131), (39, 5625102), (42, 5223309), (49, 4477122), (53, 4139226), (57, 3848754), (63, 3482206), (78, 2812551), (91, 2410758), (98, 2238561), (106, 2069613), (114, 1924377), (117, 1875034), (126, 1741103), (133, 1649466), (147, 1492374), (159, 1379742), (171, 1282918), (182, 1205379), (234, 937517), (247, 888174), (266, 824733), (273, 803586), (294, 746187), (318, 689871), (342, 641459), (361, 607698), (371, 591318), (399, 549822), (441, 497458), (477, 459914), (494, 444087), (546, 401793), (637, 344394), (689, 318402), (722, 303849), (741, 296058), (742, 295659), (798, 274911), (819, 267862), (882, 248729), (931, 235638), (954, 229957), (1007, 217854), (1083, 202566), (1113, 197106), (1197, 183274), (1274, 172197), (1378, 159201), (1482, 148029), (1638, 133931), (1729, 126882), (1862, 117819), (1911, 114798), (2014, 108927), (2067, 106134), (2166, 101283), (2223, 98686), (2226, 98553), (2394, 91637), (2527, 86814), (2597, 84474), (2793, 78546), (3021, 72618), (3249, 67522), (3339, 65702), (3458, 63441), (3822, 57399), (4134, 53067), (4446, 49343), (4693, 46746), (4823, 45486), (5054, 43407), (5187, 42294), (5194, 42237), (5586, 39273), (5733, 38266), (6042, 36309), (6201, 35378), (6498, 33761), (6678, 32851), (7049, 31122), (7581, 28938), (7791, 28158), (8379, 26182), (9063, 24206), (9386, 23373), (9646, 22743), (10374, 21147), (11466, 19133), (12103, 18126), (12402, 17689), (13091, 16758), (14079, 15582), (14098, 15561), (14469, 15162)]