639779826

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{1867}}^1$

素因数の和:2119

約数の個数: 64

約数和(自身を含む): 1506355200

約数和(自身を除く): 866575374

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 82, 123, 199, 246, 287, 398, 574, 597, 861, 1194, 1393, 1722, 1867, 2786, 3734, 4179, 5601, 8159, 8358, 11202, 13069, 16318, 24477, 26138, 39207, 48954, 57113, 76547, 78414, 114226, 153094, 171339, 229641, 342678, 371533, 459282, 535829, 743066, 1071658, 1114599, 1607487, 2229198, 2600731, 3214974, 5201462, 7802193, 15232853, 15604386, 30465706, 45698559, 91397118, 106629971, 213259942, 319889913, 639779826]

約数ペア:

[(1, 639779826), (2, 319889913), (3, 213259942), (6, 106629971), (7, 91397118), (14, 45698559), (21, 30465706), (41, 15604386), (42, 15232853), (82, 7802193), (123, 5201462), (199, 3214974), (246, 2600731), (287, 2229198), (398, 1607487), (574, 1114599), (597, 1071658), (861, 743066), (1194, 535829), (1393, 459282), (1722, 371533), (1867, 342678), (2786, 229641), (3734, 171339), (4179, 153094), (5601, 114226), (8159, 78414), (8358, 76547), (11202, 57113), (13069, 48954), (16318, 39207), (24477, 26138)]