346262020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{9721}}^1$

素因数の和:9880

約数の個数: 48

約数和(自身を含む): 788881968

約数和(自身を除く): 442619948

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 260, 274, 548, 685, 1370, 1781, 2740, 3562, 7124, 8905, 9721, 17810, 19442, 35620, 38884, 48605, 97210, 126373, 194420, 252746, 505492, 631865, 1263730, 1331777, 2527460, 2663554, 5327108, 6658885, 13317770, 17313101, 26635540, 34626202, 69252404, 86565505, 173131010, 346262020]

約数ペア:

[(1, 346262020), (2, 173131010), (4, 86565505), (5, 69252404), (10, 34626202), (13, 26635540), (20, 17313101), (26, 13317770), (52, 6658885), (65, 5327108), (130, 2663554), (137, 2527460), (260, 1331777), (274, 1263730), (548, 631865), (685, 505492), (1370, 252746), (1781, 194420), (2740, 126373), (3562, 97210), (7124, 48605), (8905, 38884), (9721, 35620), (17810, 19442)]