18647940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{13513}}^1$

素因数の和:13548

約数の個数: 48

約数和(自身を含む): 54488448

約数和(自身を除く): 35840508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 13513, 27026, 40539, 54052, 67565, 81078, 135130, 162156, 202695, 270260, 310799, 405390, 621598, 810780, 932397, 1243196, 1553995, 1864794, 3107990, 3729588, 4661985, 6215980, 9323970, 18647940]

約数ペア:

[(1, 18647940), (2, 9323970), (3, 6215980), (4, 4661985), (5, 3729588), (6, 3107990), (10, 1864794), (12, 1553995), (15, 1243196), (20, 932397), (23, 810780), (30, 621598), (46, 405390), (60, 310799), (69, 270260), (92, 202695), (115, 162156), (138, 135130), (230, 81078), (276, 67565), (345, 54052), (460, 40539), (690, 27026), (1380, 13513)]