20235625936

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{21803}}^1$

素因数の和:21944

約数の個数: 80

約数和(自身を含む): 42826544640

約数和(自身を除く): 22590918704

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 71, 76, 86, 142, 152, 172, 284, 304, 344, 568, 688, 817, 1136, 1349, 1634, 2698, 3053, 3268, 5396, 6106, 6536, 10792, 12212, 13072, 21584, 21803, 24424, 43606, 48848, 58007, 87212, 116014, 174424, 232028, 348848, 414257, 464056, 828514, 928112, 937529, 1548013, 1657028, 1875058, 3096026, 3314056, 3750116, 6192052, 6628112, 7500232, 12384104, 15000464, 17813051, 24768208, 29412247, 35626102, 58824494, 66564559, 71252204, 117648988, 133129118, 142504408, 235297976, 266258236, 285008816, 470595952, 532516472, 1065032944, 1264726621, 2529453242, 5058906484, 10117812968, 20235625936]

約数ペア:

[(1, 20235625936), (2, 10117812968), (4, 5058906484), (8, 2529453242), (16, 1264726621), (19, 1065032944), (38, 532516472), (43, 470595952), (71, 285008816), (76, 266258236), (86, 235297976), (142, 142504408), (152, 133129118), (172, 117648988), (284, 71252204), (304, 66564559), (344, 58824494), (568, 35626102), (688, 29412247), (817, 24768208), (1136, 17813051), (1349, 15000464), (1634, 12384104), (2698, 7500232), (3053, 6628112), (3268, 6192052), (5396, 3750116), (6106, 3314056), (6536, 3096026), (10792, 1875058), (12212, 1657028), (13072, 1548013), (21584, 937529), (21803, 928112), (24424, 828514), (43606, 464056), (48848, 414257), (58007, 348848), (87212, 232028), (116014, 174424)]