164506940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{33301}}^1$

素因数の和:33342

約数の個数: 48

約数和(自身を含む): 391631520

約数和(自身を除く): 227124580

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 33301, 66602, 133204, 166505, 333010, 432913, 632719, 666020, 865826, 1265438, 1731652, 2164565, 2530876, 3163595, 4329130, 6327190, 8225347, 8658260, 12654380, 16450694, 32901388, 41126735, 82253470, 164506940]

約数ペア:

[(1, 164506940), (2, 82253470), (4, 41126735), (5, 32901388), (10, 16450694), (13, 12654380), (19, 8658260), (20, 8225347), (26, 6327190), (38, 4329130), (52, 3163595), (65, 2530876), (76, 2164565), (95, 1731652), (130, 1265438), (190, 865826), (247, 666020), (260, 632719), (380, 432913), (494, 333010), (988, 166505), (1235, 133204), (2470, 66602), (4940, 33301)]