391187628

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{4243}}^1$

素因数の和:4463

約数の個数: 72

約数和(自身を含む): 1070557488

約数和(自身を除く): 679369860

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 197, 234, 394, 468, 591, 788, 1182, 1773, 2364, 2561, 3546, 4243, 5122, 7092, 7683, 8486, 10244, 12729, 15366, 16972, 23049, 25458, 30732, 38187, 46098, 50916, 55159, 76374, 92196, 110318, 152748, 165477, 220636, 330954, 496431, 661908, 835871, 992862, 1671742, 1985724, 2507613, 3343484, 5015226, 7522839, 10030452, 10866323, 15045678, 21732646, 30091356, 32598969, 43465292, 65197938, 97796907, 130395876, 195593814, 391187628]

約数ペア:

[(1, 391187628), (2, 195593814), (3, 130395876), (4, 97796907), (6, 65197938), (9, 43465292), (12, 32598969), (13, 30091356), (18, 21732646), (26, 15045678), (36, 10866323), (39, 10030452), (52, 7522839), (78, 5015226), (117, 3343484), (156, 2507613), (197, 1985724), (234, 1671742), (394, 992862), (468, 835871), (591, 661908), (788, 496431), (1182, 330954), (1773, 220636), (2364, 165477), (2561, 152748), (3546, 110318), (4243, 92196), (5122, 76374), (7092, 55159), (7683, 50916), (8486, 46098), (10244, 38187), (12729, 30732), (15366, 25458), (16972, 23049)]