20870836844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1021}}^1\times {\mathrm{2749}}^1$

素因数の和:3811

約数の個数: 72

約数和(自身を含む): 43203006000

約数和(自身を除く): 22332169156

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 169, 286, 338, 572, 676, 1021, 1859, 2042, 2749, 3718, 4084, 5498, 7436, 10996, 11231, 13273, 22462, 26546, 30239, 35737, 44924, 53092, 60478, 71474, 120956, 142948, 146003, 172549, 292006, 345098, 393107, 464581, 584012, 690196, 786214, 929162, 1572428, 1858324, 1898039, 2806729, 3796078, 5110391, 5613458, 7592156, 10220782, 11226916, 20441564, 30874019, 36487477, 61748038, 72974954, 123496076, 145949908, 401362247, 474337201, 802724494, 948674402, 1605448988, 1897348804, 5217709211, 10435418422, 20870836844]

約数ペア:

[(1, 20870836844), (2, 10435418422), (4, 5217709211), (11, 1897348804), (13, 1605448988), (22, 948674402), (26, 802724494), (44, 474337201), (52, 401362247), (143, 145949908), (169, 123496076), (286, 72974954), (338, 61748038), (572, 36487477), (676, 30874019), (1021, 20441564), (1859, 11226916), (2042, 10220782), (2749, 7592156), (3718, 5613458), (4084, 5110391), (5498, 3796078), (7436, 2806729), (10996, 1898039), (11231, 1858324), (13273, 1572428), (22462, 929162), (26546, 786214), (30239, 690196), (35737, 584012), (44924, 464581), (53092, 393107), (60478, 345098), (71474, 292006), (120956, 172549), (142948, 146003)]