256536694076

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{211}}^1\times {\mathrm{607}}^1\times {\mathrm{2963}}^1$

素因数の和:3811

約数の個数: 72

約数和(自身を含む): 489403160064

約数和(自身を除く): 232866465988

約数列:

[1, 2, 4, 13, 26, 52, 169, 211, 338, 422, 607, 676, 844, 1214, 2428, 2743, 2963, 5486, 5926, 7891, 10972, 11852, 15782, 31564, 35659, 38519, 71318, 77038, 102583, 128077, 142636, 154076, 205166, 256154, 410332, 500747, 512308, 625193, 1001494, 1250386, 1665001, 1798541, 2002988, 2500772, 3330002, 3597082, 6660004, 7194164, 8127509, 16255018, 21645013, 23381033, 32510036, 43290026, 46762066, 86580052, 93524132, 105657617, 211315234, 303953429, 379492151, 422630468, 607906858, 758984302, 1215813716, 1517968604, 4933397963, 9866795926, 19733591852, 64134173519, 128268347038, 256536694076]

約数ペア:

[(1, 256536694076), (2, 128268347038), (4, 64134173519), (13, 19733591852), (26, 9866795926), (52, 4933397963), (169, 1517968604), (211, 1215813716), (338, 758984302), (422, 607906858), (607, 422630468), (676, 379492151), (844, 303953429), (1214, 211315234), (2428, 105657617), (2743, 93524132), (2963, 86580052), (5486, 46762066), (5926, 43290026), (7891, 32510036), (10972, 23381033), (11852, 21645013), (15782, 16255018), (31564, 8127509), (35659, 7194164), (38519, 6660004), (71318, 3597082), (77038, 3330002), (102583, 2500772), (128077, 2002988), (142636, 1798541), (154076, 1665001), (205166, 1250386), (256154, 1001494), (410332, 625193), (500747, 512308)]