20104080388

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{809}}^1$

素因数の和:974

約数の個数: 144

約数和(自身を含む): 44450259840

約数和(自身を除く): 24346179452

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 37, 68, 74, 83, 119, 148, 166, 238, 259, 289, 332, 476, 518, 578, 581, 629, 809, 1036, 1156, 1162, 1258, 1411, 1618, 2023, 2324, 2516, 2822, 3071, 3236, 4046, 4403, 5644, 5663, 6142, 8092, 8806, 9877, 10693, 11326, 12284, 13753, 17612, 19754, 21386, 21497, 22652, 23987, 27506, 29933, 39508, 42772, 42994, 47974, 52207, 55012, 59866, 67147, 74851, 85988, 95948, 96271, 104414, 119732, 134294, 149702, 167909, 192542, 208828, 209531, 233801, 268588, 299404, 335818, 365449, 385084, 419062, 467602, 470029, 508861, 671636, 730898, 838124, 887519, 935204, 940058, 1017722, 1141499, 1461796, 1636607, 1775038, 1880116, 2035444, 2282998, 2484439, 3273214, 3550076, 3562027, 4565996, 4968878, 6212633, 6546428, 7124054, 7990493, 8650637, 9937756, 12425266, 14248108, 15980986, 17301274, 17391073, 19405483, 24850532, 31961972, 34602548, 34782146, 38810966, 42235463, 60554459, 69564292, 77621932, 84470926, 121108918, 135838381, 168941852, 242217836, 271676762, 295648241, 543353524, 591296482, 718002871, 1182592964, 1436005742, 2872011484, 5026020097, 10052040194, 20104080388]

約数ペア:

[(1, 20104080388), (2, 10052040194), (4, 5026020097), (7, 2872011484), (14, 1436005742), (17, 1182592964), (28, 718002871), (34, 591296482), (37, 543353524), (68, 295648241), (74, 271676762), (83, 242217836), (119, 168941852), (148, 135838381), (166, 121108918), (238, 84470926), (259, 77621932), (289, 69564292), (332, 60554459), (476, 42235463), (518, 38810966), (578, 34782146), (581, 34602548), (629, 31961972), (809, 24850532), (1036, 19405483), (1156, 17391073), (1162, 17301274), (1258, 15980986), (1411, 14248108), (1618, 12425266), (2023, 9937756), (2324, 8650637), (2516, 7990493), (2822, 7124054), (3071, 6546428), (3236, 6212633), (4046, 4968878), (4403, 4565996), (5644, 3562027), (5663, 3550076), (6142, 3273214), (8092, 2484439), (8806, 2282998), (9877, 2035444), (10693, 1880116), (11326, 1775038), (12284, 1636607), (13753, 1461796), (17612, 1141499), (19754, 1017722), (21386, 940058), (21497, 935204), (22652, 887519), (23987, 838124), (27506, 730898), (29933, 671636), (39508, 508861), (42772, 470029), (42994, 467602), (47974, 419062), (52207, 385084), (55012, 365449), (59866, 335818), (67147, 299404), (74851, 268588), (85988, 233801), (95948, 209531), (96271, 208828), (104414, 192542), (119732, 167909), (134294, 149702)]