19525220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6827}}^1$

素因数の和:6860

約数の個数: 48

約数和(自身を含む): 48178368

約数和(自身を除く): 28653148

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 6827, 13654, 27308, 34135, 68270, 75097, 88751, 136540, 150194, 177502, 300388, 355004, 375485, 443755, 750970, 887510, 976261, 1501940, 1775020, 1952522, 3905044, 4881305, 9762610, 19525220]

約数ペア:

[(1, 19525220), (2, 9762610), (4, 4881305), (5, 3905044), (10, 1952522), (11, 1775020), (13, 1501940), (20, 976261), (22, 887510), (26, 750970), (44, 443755), (52, 375485), (55, 355004), (65, 300388), (110, 177502), (130, 150194), (143, 136540), (220, 88751), (260, 75097), (286, 68270), (572, 34135), (715, 27308), (1430, 13654), (2860, 6827)]