56720655

素因数分解:

$3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3257}}^1$

素因数の和:3317

約数の個数: 40

約数和(自身を含む): 104073552

約数和(自身を除く): 47352897

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 129, 135, 215, 387, 405, 645, 1161, 1935, 3257, 3483, 5805, 9771, 16285, 17415, 29313, 48855, 87939, 140051, 146565, 263817, 420153, 439695, 700255, 1260459, 1319085, 2100765, 3781377, 6302295, 11344131, 18906885, 56720655]

約数ペア:

[(1, 56720655), (3, 18906885), (5, 11344131), (9, 6302295), (15, 3781377), (27, 2100765), (43, 1319085), (45, 1260459), (81, 700255), (129, 439695), (135, 420153), (215, 263817), (387, 146565), (405, 140051), (645, 87939), (1161, 48855), (1935, 29313), (3257, 17415), (3483, 16285), (5805, 9771)]