638443755

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{983}}^1$

素因数の和:1297

約数の個数: 64

約数和(自身を含む): 1207249920

約数和(自身を除く): 568806165

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 283, 459, 765, 849, 983, 1415, 2295, 2547, 2949, 4245, 4811, 4915, 7641, 8847, 12735, 14433, 14745, 16711, 24055, 26541, 38205, 43299, 44235, 50133, 72165, 83555, 129897, 132705, 150399, 216495, 250665, 278189, 451197, 649485, 751995, 834567, 1390945, 2255985, 2503701, 4172835, 4729213, 7511103, 12518505, 14187639, 23646065, 37555515, 42562917, 70938195, 127688751, 212814585, 638443755]

約数ペア:

[(1, 638443755), (3, 212814585), (5, 127688751), (9, 70938195), (15, 42562917), (17, 37555515), (27, 23646065), (45, 14187639), (51, 12518505), (85, 7511103), (135, 4729213), (153, 4172835), (255, 2503701), (283, 2255985), (459, 1390945), (765, 834567), (849, 751995), (983, 649485), (1415, 451197), (2295, 278189), (2547, 250665), (2949, 216495), (4245, 150399), (4811, 132705), (4915, 129897), (7641, 83555), (8847, 72165), (12735, 50133), (14433, 44235), (14745, 43299), (16711, 38205), (24055, 26541)]