261798732

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:272

約数の個数: 144

約数和(自身を含む): 739123840

約数和(自身を除く): 477325108

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 73, 78, 79, 97, 117, 146, 156, 158, 194, 219, 234, 237, 291, 292, 316, 388, 438, 468, 474, 582, 657, 711, 873, 876, 948, 949, 1027, 1164, 1261, 1314, 1422, 1746, 1898, 2054, 2522, 2628, 2844, 2847, 3081, 3492, 3783, 3796, 4108, 5044, 5694, 5767, 6162, 7081, 7566, 7663, 8541, 9243, 11349, 11388, 11534, 12324, 14162, 15132, 15326, 17082, 17301, 18486, 21243, 22698, 22989, 23068, 28324, 30652, 34164, 34602, 36972, 42486, 45396, 45978, 51903, 63729, 68967, 69204, 74971, 84972, 91956, 92053, 99619, 103806, 127458, 137934, 149942, 184106, 199238, 207612, 224913, 254916, 275868, 276159, 298857, 299884, 368212, 398476, 449826, 552318, 559399, 597714, 674739, 828477, 896571, 899652, 1104636, 1118798, 1195428, 1349478, 1656954, 1678197, 1793142, 2237596, 2698956, 3313908, 3356394, 3586284, 5034591, 6712788, 7272187, 10069182, 14544374, 20138364, 21816561, 29088748, 43633122, 65449683, 87266244, 130899366, 261798732]

約数ペア:

[(1, 261798732), (2, 130899366), (3, 87266244), (4, 65449683), (6, 43633122), (9, 29088748), (12, 21816561), (13, 20138364), (18, 14544374), (26, 10069182), (36, 7272187), (39, 6712788), (52, 5034591), (73, 3586284), (78, 3356394), (79, 3313908), (97, 2698956), (117, 2237596), (146, 1793142), (156, 1678197), (158, 1656954), (194, 1349478), (219, 1195428), (234, 1118798), (237, 1104636), (291, 899652), (292, 896571), (316, 828477), (388, 674739), (438, 597714), (468, 559399), (474, 552318), (582, 449826), (657, 398476), (711, 368212), (873, 299884), (876, 298857), (948, 276159), (949, 275868), (1027, 254916), (1164, 224913), (1261, 207612), (1314, 199238), (1422, 184106), (1746, 149942), (1898, 137934), (2054, 127458), (2522, 103806), (2628, 99619), (2844, 92053), (2847, 91956), (3081, 84972), (3492, 74971), (3783, 69204), (3796, 68967), (4108, 63729), (5044, 51903), (5694, 45978), (5767, 45396), (6162, 42486), (7081, 36972), (7566, 34602), (7663, 34164), (8541, 30652), (9243, 28324), (11349, 23068), (11388, 22989), (11534, 22698), (12324, 21243), (14162, 18486), (15132, 17301), (15326, 17082)]