638637076

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{317}}^1$

素因数の和:581

約数の個数: 96

約数和(自身を含む): 1449713664

約数和(自身を除く): 811076588

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 124, 154, 211, 217, 308, 317, 341, 422, 434, 634, 682, 844, 868, 1268, 1364, 1477, 2219, 2321, 2387, 2954, 3487, 4438, 4642, 4774, 5908, 6541, 6974, 8876, 9284, 9548, 9827, 13082, 13948, 16247, 19654, 24409, 26164, 32494, 39308, 45787, 48818, 64988, 66887, 68789, 71951, 91574, 97636, 108097, 133774, 137578, 143902, 183148, 216194, 267548, 275156, 287804, 432388, 468209, 503657, 735757, 756679, 936418, 1007314, 1471514, 1513358, 1872836, 2014628, 2073497, 2943028, 3026716, 4146994, 5150299, 8293988, 10300598, 14514479, 20601196, 22808467, 29028958, 45616934, 58057916, 91233868, 159659269, 319318538, 638637076]

約数ペア:

[(1, 638637076), (2, 319318538), (4, 159659269), (7, 91233868), (11, 58057916), (14, 45616934), (22, 29028958), (28, 22808467), (31, 20601196), (44, 14514479), (62, 10300598), (77, 8293988), (124, 5150299), (154, 4146994), (211, 3026716), (217, 2943028), (308, 2073497), (317, 2014628), (341, 1872836), (422, 1513358), (434, 1471514), (634, 1007314), (682, 936418), (844, 756679), (868, 735757), (1268, 503657), (1364, 468209), (1477, 432388), (2219, 287804), (2321, 275156), (2387, 267548), (2954, 216194), (3487, 183148), (4438, 143902), (4642, 137578), (4774, 133774), (5908, 108097), (6541, 97636), (6974, 91574), (8876, 71951), (9284, 68789), (9548, 66887), (9827, 64988), (13082, 48818), (13948, 45787), (16247, 39308), (19654, 32494), (24409, 26164)]