2155121620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{275591}}^1$

素因数の和:275640

約数の個数: 48

約数和(自身を含む): 5000341248

約数和(自身を除く): 2845219628

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 3910, 7820, 275591, 551182, 1102364, 1377955, 2755910, 4685047, 5511820, 6338593, 9370094, 12677186, 18740188, 23425235, 25354372, 31692965, 46850470, 63385930, 93700940, 107756081, 126771860, 215512162, 431024324, 538780405, 1077560810, 2155121620]

約数ペア:

[(1, 2155121620), (2, 1077560810), (4, 538780405), (5, 431024324), (10, 215512162), (17, 126771860), (20, 107756081), (23, 93700940), (34, 63385930), (46, 46850470), (68, 31692965), (85, 25354372), (92, 23425235), (115, 18740188), (170, 12677186), (230, 9370094), (340, 6338593), (391, 5511820), (460, 4685047), (782, 2755910), (1564, 1377955), (1955, 1102364), (3910, 551182), (7820, 275591)]