20499474242

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{647}}^1\times {\mathrm{739}}^1$

素因数の和:1515

約数の個数: 64

約数和(自身を含む): 35526677760

約数和(自身を除く): 15027203518

約数列:

[1, 2, 13, 17, 26, 34, 97, 194, 221, 442, 647, 739, 1261, 1294, 1478, 1649, 2522, 3298, 8411, 9607, 10999, 12563, 16822, 19214, 21437, 21998, 25126, 42874, 62759, 71683, 125518, 142987, 143366, 163319, 285974, 326638, 478133, 815867, 931879, 956266, 1066903, 1218611, 1631734, 1863758, 2133806, 2437222, 6215729, 8128261, 12431458, 13869739, 15841943, 16256522, 27739478, 31683886, 46378901, 92757802, 105667393, 211334786, 602925713, 788441317, 1205851426, 1576882634, 10249737121, 20499474242]

約数ペア:

[(1, 20499474242), (2, 10249737121), (13, 1576882634), (17, 1205851426), (26, 788441317), (34, 602925713), (97, 211334786), (194, 105667393), (221, 92757802), (442, 46378901), (647, 31683886), (739, 27739478), (1261, 16256522), (1294, 15841943), (1478, 13869739), (1649, 12431458), (2522, 8128261), (3298, 6215729), (8411, 2437222), (9607, 2133806), (10999, 1863758), (12563, 1631734), (16822, 1218611), (19214, 1066903), (21437, 956266), (21998, 931879), (25126, 815867), (42874, 478133), (62759, 326638), (71683, 285974), (125518, 163319), (142987, 143366)]