199983368

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{227}}^1$

素因数の和:486

約数の個数: 64

約数和(自身を含む): 417130560

約数和(自身を除く): 217147192

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 197, 227, 344, 394, 454, 559, 788, 908, 1118, 1576, 1816, 2236, 2561, 2951, 4472, 5122, 5902, 8471, 9761, 10244, 11804, 16942, 19522, 20488, 23608, 33884, 39044, 44719, 67768, 78088, 89438, 110123, 126893, 178876, 220246, 253786, 357752, 440492, 507572, 581347, 880984, 1015144, 1162694, 1922917, 2325388, 3845834, 4650776, 7691668, 15383336, 24997921, 49995842, 99991684, 199983368]

約数ペア:

[(1, 199983368), (2, 99991684), (4, 49995842), (8, 24997921), (13, 15383336), (26, 7691668), (43, 4650776), (52, 3845834), (86, 2325388), (104, 1922917), (172, 1162694), (197, 1015144), (227, 880984), (344, 581347), (394, 507572), (454, 440492), (559, 357752), (788, 253786), (908, 220246), (1118, 178876), (1576, 126893), (1816, 110123), (2236, 89438), (2561, 78088), (2951, 67768), (4472, 44719), (5122, 39044), (5902, 33884), (8471, 23608), (9761, 20488), (10244, 19522), (11804, 16942)]