20002643860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1\times {\mathrm{2239}}^1$

素因数の和:2561

約数の個数: 96

約数和(自身を含む): 44277811200

約数和(自身を除く): 24275167340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 73, 116, 145, 146, 211, 290, 292, 365, 422, 580, 730, 844, 1055, 1460, 2110, 2117, 2239, 4220, 4234, 4478, 6119, 8468, 8956, 10585, 11195, 12238, 15403, 21170, 22390, 24476, 30595, 30806, 42340, 44780, 61190, 61612, 64931, 77015, 122380, 129862, 154030, 163447, 259724, 308060, 324655, 326894, 446687, 472429, 649310, 653788, 817235, 893374, 944858, 1298620, 1634470, 1786748, 1889716, 2233435, 2362145, 3268940, 4466870, 4724290, 4739963, 8933740, 9448580, 9479926, 13700441, 18959852, 23699815, 27400882, 34487317, 47399630, 54801764, 68502205, 68974634, 94799260, 137004410, 137949268, 172436585, 274008820, 344873170, 689746340, 1000132193, 2000264386, 4000528772, 5000660965, 10001321930, 20002643860]

約数ペア:

[(1, 20002643860), (2, 10001321930), (4, 5000660965), (5, 4000528772), (10, 2000264386), (20, 1000132193), (29, 689746340), (58, 344873170), (73, 274008820), (116, 172436585), (145, 137949268), (146, 137004410), (211, 94799260), (290, 68974634), (292, 68502205), (365, 54801764), (422, 47399630), (580, 34487317), (730, 27400882), (844, 23699815), (1055, 18959852), (1460, 13700441), (2110, 9479926), (2117, 9448580), (2239, 8933740), (4220, 4739963), (4234, 4724290), (4478, 4466870), (6119, 3268940), (8468, 2362145), (8956, 2233435), (10585, 1889716), (11195, 1786748), (12238, 1634470), (15403, 1298620), (21170, 944858), (22390, 893374), (24476, 817235), (30595, 653788), (30806, 649310), (42340, 472429), (44780, 446687), (61190, 326894), (61612, 324655), (64931, 308060), (77015, 259724), (122380, 163447), (129862, 154030)]