20211940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6277}}^1$

素因数の和:6316

約数の個数: 48

約数和(自身を含む): 50625792

約数和(自身を除く): 30413852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6277, 12554, 25108, 31385, 43939, 62770, 87878, 125540, 144371, 175756, 219695, 288742, 439390, 577484, 721855, 878780, 1010597, 1443710, 2021194, 2887420, 4042388, 5052985, 10105970, 20211940]

約数ペア:

[(1, 20211940), (2, 10105970), (4, 5052985), (5, 4042388), (7, 2887420), (10, 2021194), (14, 1443710), (20, 1010597), (23, 878780), (28, 721855), (35, 577484), (46, 439390), (70, 288742), (92, 219695), (115, 175756), (140, 144371), (161, 125540), (230, 87878), (322, 62770), (460, 43939), (644, 31385), (805, 25108), (1610, 12554), (3220, 6277)]