64947500

素因数分解:

$2^2\times 5^4\times {\mathrm{83}}^1\times {\mathrm{313}}^1$

素因数の和:420

約数の個数: 60

約数和(自身を含む): 144197592

約数和(自身を除く): 79250092

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 83, 100, 125, 166, 250, 313, 332, 415, 500, 625, 626, 830, 1250, 1252, 1565, 1660, 2075, 2500, 3130, 4150, 6260, 7825, 8300, 10375, 15650, 20750, 25979, 31300, 39125, 41500, 51875, 51958, 78250, 103750, 103916, 129895, 156500, 195625, 207500, 259790, 391250, 519580, 649475, 782500, 1298950, 2597900, 3247375, 6494750, 12989500, 16236875, 32473750, 64947500]

約数ペア:

[(1, 64947500), (2, 32473750), (4, 16236875), (5, 12989500), (10, 6494750), (20, 3247375), (25, 2597900), (50, 1298950), (83, 782500), (100, 649475), (125, 519580), (166, 391250), (250, 259790), (313, 207500), (332, 195625), (415, 156500), (500, 129895), (625, 103916), (626, 103750), (830, 78250), (1250, 51958), (1252, 51875), (1565, 41500), (1660, 39125), (2075, 31300), (2500, 25979), (3130, 20750), (4150, 15650), (6260, 10375), (7825, 8300)]