209300780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 491878464

約数和(自身を除く): 282577684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 97, 130, 172, 193, 194, 215, 260, 386, 388, 430, 485, 559, 772, 860, 965, 970, 1118, 1261, 1930, 1940, 2236, 2509, 2522, 2795, 3860, 4171, 5018, 5044, 5590, 6305, 8299, 8342, 10036, 11180, 12545, 12610, 16598, 16684, 18721, 20855, 25090, 25220, 33196, 37442, 41495, 41710, 50180, 54223, 74884, 82990, 83420, 93605, 107887, 108446, 165980, 187210, 215774, 216892, 243373, 271115, 374420, 431548, 486746, 539435, 542230, 805003, 973492, 1078870, 1084460, 1216865, 1610006, 2157740, 2433730, 3220012, 4025015, 4867460, 8050030, 10465039, 16100060, 20930078, 41860156, 52325195, 104650390, 209300780]

約数ペア:

[(1, 209300780), (2, 104650390), (4, 52325195), (5, 41860156), (10, 20930078), (13, 16100060), (20, 10465039), (26, 8050030), (43, 4867460), (52, 4025015), (65, 3220012), (86, 2433730), (97, 2157740), (130, 1610006), (172, 1216865), (193, 1084460), (194, 1078870), (215, 973492), (260, 805003), (386, 542230), (388, 539435), (430, 486746), (485, 431548), (559, 374420), (772, 271115), (860, 243373), (965, 216892), (970, 215774), (1118, 187210), (1261, 165980), (1930, 108446), (1940, 107887), (2236, 93605), (2509, 83420), (2522, 82990), (2795, 74884), (3860, 54223), (4171, 50180), (5018, 41710), (5044, 41495), (5590, 37442), (6305, 33196), (8299, 25220), (8342, 25090), (10036, 20855), (11180, 18721), (12545, 16684), (12610, 16598)]