211378960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{203249}}^1$

素因数の和:203275

約数の個数: 40

約数和(自身を含む): 529263000

約数和(自身を除く): 317884040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 203249, 406498, 812996, 1016245, 1625992, 2032490, 2642237, 3251984, 4064980, 5284474, 8129960, 10568948, 13211185, 16259920, 21137896, 26422370, 42275792, 52844740, 105689480, 211378960]

約数ペア:

[(1, 211378960), (2, 105689480), (4, 52844740), (5, 42275792), (8, 26422370), (10, 21137896), (13, 16259920), (16, 13211185), (20, 10568948), (26, 8129960), (40, 5284474), (52, 4064980), (65, 3251984), (80, 2642237), (104, 2032490), (130, 1625992), (208, 1016245), (260, 812996), (520, 406498), (1040, 203249)]