641399759

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{383}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 882524160

約数和(自身を除く): 241124401

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 239, 383, 539, 637, 1001, 1673, 2629, 2681, 3107, 4213, 4979, 7007, 11711, 18403, 18767, 21749, 29491, 34177, 34853, 54769, 91537, 128821, 152243, 206437, 239239, 243971, 383383, 640759, 1006907, 1189981, 1674673, 2683681, 4485313, 7048349, 8329867, 13089791, 49338443, 58309069, 91628537, 641399759]

約数ペア:

[(1, 641399759), (7, 91628537), (11, 58309069), (13, 49338443), (49, 13089791), (77, 8329867), (91, 7048349), (143, 4485313), (239, 2683681), (383, 1674673), (539, 1189981), (637, 1006907), (1001, 640759), (1673, 383383), (2629, 243971), (2681, 239239), (3107, 206437), (4213, 152243), (4979, 128821), (7007, 91537), (11711, 54769), (18403, 34853), (18767, 34177), (21749, 29491)]