397975396

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{2713}}^1$

素因数の和:2781

約数の個数: 72

約数和(自身を含む): 890018304

約数和(自身を除く): 492042908

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 169, 182, 217, 338, 364, 403, 434, 676, 806, 868, 1183, 1612, 2366, 2713, 2821, 4732, 5239, 5426, 5642, 10478, 10852, 11284, 18991, 20956, 35269, 36673, 37982, 70538, 73346, 75964, 84103, 141076, 146692, 168206, 246883, 336412, 458497, 493766, 588721, 916994, 987532, 1093339, 1177442, 1833988, 2186678, 2354884, 3209479, 4373356, 6418958, 7653373, 12837916, 14213407, 15306746, 28426814, 30613492, 56853628, 99493849, 198987698, 397975396]

約数ペア:

[(1, 397975396), (2, 198987698), (4, 99493849), (7, 56853628), (13, 30613492), (14, 28426814), (26, 15306746), (28, 14213407), (31, 12837916), (52, 7653373), (62, 6418958), (91, 4373356), (124, 3209479), (169, 2354884), (182, 2186678), (217, 1833988), (338, 1177442), (364, 1093339), (403, 987532), (434, 916994), (676, 588721), (806, 493766), (868, 458497), (1183, 336412), (1612, 246883), (2366, 168206), (2713, 146692), (2821, 141076), (4732, 84103), (5239, 75964), (5426, 73346), (5642, 70538), (10478, 37982), (10852, 36673), (11284, 35269), (18991, 20956)]