20177362828

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^2\times {\mathrm{43}}^1\times {\mathrm{19927}}^1$

素因数の和:20039

約数の個数: 72

約数和(自身を含む): 42768357632

約数和(自身を除く): 22590994804

約数列:

[1, 2, 4, 7, 14, 28, 29, 43, 58, 86, 116, 172, 203, 301, 406, 602, 812, 841, 1204, 1247, 1682, 2494, 3364, 4988, 5887, 8729, 11774, 17458, 19927, 23548, 34916, 36163, 39854, 72326, 79708, 139489, 144652, 253141, 278978, 506282, 557956, 577883, 856861, 1012564, 1155766, 1713722, 2311532, 3427444, 4045181, 5998027, 8090362, 11996054, 16180724, 16758607, 23992108, 24848969, 33517214, 49697938, 67034428, 99395876, 117310249, 173942783, 234620498, 347885566, 469240996, 695771132, 720620101, 1441240202, 2882480404, 5044340707, 10088681414, 20177362828]

約数ペア:

[(1, 20177362828), (2, 10088681414), (4, 5044340707), (7, 2882480404), (14, 1441240202), (28, 720620101), (29, 695771132), (43, 469240996), (58, 347885566), (86, 234620498), (116, 173942783), (172, 117310249), (203, 99395876), (301, 67034428), (406, 49697938), (602, 33517214), (812, 24848969), (841, 23992108), (1204, 16758607), (1247, 16180724), (1682, 11996054), (2494, 8090362), (3364, 5998027), (4988, 4045181), (5887, 3427444), (8729, 2311532), (11774, 1713722), (17458, 1155766), (19927, 1012564), (23548, 856861), (34916, 577883), (36163, 557956), (39854, 506282), (72326, 278978), (79708, 253141), (139489, 144652)]