152720540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{2531}}^1$

素因数の和:2978

約数の個数: 48

約数和(自身を含む): 367524864

約数和(自身を除く): 214804324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 431, 862, 1724, 2155, 2531, 3017, 4310, 5062, 6034, 8620, 10124, 12068, 12655, 15085, 17717, 25310, 30170, 35434, 50620, 60340, 70868, 88585, 177170, 354340, 1090861, 2181722, 4363444, 5454305, 7636027, 10908610, 15272054, 21817220, 30544108, 38180135, 76360270, 152720540]

約数ペア:

[(1, 152720540), (2, 76360270), (4, 38180135), (5, 30544108), (7, 21817220), (10, 15272054), (14, 10908610), (20, 7636027), (28, 5454305), (35, 4363444), (70, 2181722), (140, 1090861), (431, 354340), (862, 177170), (1724, 88585), (2155, 70868), (2531, 60340), (3017, 50620), (4310, 35434), (5062, 30170), (6034, 25310), (8620, 17717), (10124, 15085), (12068, 12655)]