651472016

素因数分解:

$2^4\times {\mathrm{13}}^3\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:521

約数の個数: 80

約数和(自身を含む): 1402410240

約数和(自身を除く): 750938224

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 169, 172, 208, 338, 344, 431, 559, 676, 688, 862, 1118, 1352, 1724, 2197, 2236, 2704, 3448, 4394, 4472, 5603, 6896, 7267, 8788, 8944, 11206, 14534, 17576, 18533, 22412, 29068, 35152, 37066, 44824, 58136, 72839, 74132, 89648, 94471, 116272, 145678, 148264, 188942, 240929, 291356, 296528, 377884, 481858, 582712, 755768, 946907, 963716, 1165424, 1511536, 1893814, 1927432, 3132077, 3787628, 3854864, 6264154, 7575256, 12528308, 15150512, 25056616, 40717001, 50113232, 81434002, 162868004, 325736008, 651472016]

約数ペア:

[(1, 651472016), (2, 325736008), (4, 162868004), (8, 81434002), (13, 50113232), (16, 40717001), (26, 25056616), (43, 15150512), (52, 12528308), (86, 7575256), (104, 6264154), (169, 3854864), (172, 3787628), (208, 3132077), (338, 1927432), (344, 1893814), (431, 1511536), (559, 1165424), (676, 963716), (688, 946907), (862, 755768), (1118, 582712), (1352, 481858), (1724, 377884), (2197, 296528), (2236, 291356), (2704, 240929), (3448, 188942), (4394, 148264), (4472, 145678), (5603, 116272), (6896, 94471), (7267, 89648), (8788, 74132), (8944, 72839), (11206, 58136), (14534, 44824), (17576, 37066), (18533, 35152), (22412, 29068)]