20790611212

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{61}}^2\times {\mathrm{983}}^1$

素因数の和:1152

約数の個数: 108

約数和(自身を含む): 44557989840

約数和(自身を除く): 23767378628

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 61, 98, 116, 122, 196, 203, 244, 406, 427, 812, 854, 983, 1421, 1708, 1769, 1966, 2842, 2989, 3538, 3721, 3932, 5684, 5978, 6881, 7076, 7442, 11956, 12383, 13762, 14884, 24766, 26047, 27524, 28507, 48167, 49532, 52094, 57014, 59963, 86681, 96334, 104188, 107909, 114028, 119926, 173362, 182329, 192668, 199549, 215818, 239852, 346724, 364658, 399098, 419741, 431636, 729316, 755363, 798196, 839482, 1396843, 1510726, 1678964, 1738927, 2793686, 2938187, 3021452, 3477854, 3657743, 5287541, 5587372, 5876374, 6955708, 7315486, 10575082, 11752748, 12172489, 14630972, 21150164, 24344978, 25604201, 48689956, 51208402, 85207423, 102416804, 106074547, 170414846, 179229407, 212149094, 340829692, 358458814, 424298188, 716917628, 742521829, 1485043658, 2970087316, 5197652803, 10395305606, 20790611212]

約数ペア:

[(1, 20790611212), (2, 10395305606), (4, 5197652803), (7, 2970087316), (14, 1485043658), (28, 742521829), (29, 716917628), (49, 424298188), (58, 358458814), (61, 340829692), (98, 212149094), (116, 179229407), (122, 170414846), (196, 106074547), (203, 102416804), (244, 85207423), (406, 51208402), (427, 48689956), (812, 25604201), (854, 24344978), (983, 21150164), (1421, 14630972), (1708, 12172489), (1769, 11752748), (1966, 10575082), (2842, 7315486), (2989, 6955708), (3538, 5876374), (3721, 5587372), (3932, 5287541), (5684, 3657743), (5978, 3477854), (6881, 3021452), (7076, 2938187), (7442, 2793686), (11956, 1738927), (12383, 1678964), (13762, 1510726), (14884, 1396843), (24766, 839482), (26047, 798196), (27524, 755363), (28507, 729316), (48167, 431636), (49532, 419741), (52094, 399098), (57014, 364658), (59963, 346724), (86681, 239852), (96334, 215818), (104188, 199549), (107909, 192668), (114028, 182329), (119926, 173362)]