20783200

素因数分解:

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

素因数の和:416

約数の個数: 72

約数和(自身を含む): 51512328

約数和(自身を除く): 30729128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 83, 100, 160, 166, 200, 313, 332, 400, 415, 626, 664, 800, 830, 1252, 1328, 1565, 1660, 2075, 2504, 2656, 3130, 3320, 4150, 5008, 6260, 6640, 7825, 8300, 10016, 12520, 13280, 15650, 16600, 25040, 25979, 31300, 33200, 50080, 51958, 62600, 66400, 103916, 125200, 129895, 207832, 250400, 259790, 415664, 519580, 649475, 831328, 1039160, 1298950, 2078320, 2597900, 4156640, 5195800, 10391600, 20783200]

約数ペア:

[(1, 20783200), (2, 10391600), (4, 5195800), (5, 4156640), (8, 2597900), (10, 2078320), (16, 1298950), (20, 1039160), (25, 831328), (32, 649475), (40, 519580), (50, 415664), (80, 259790), (83, 250400), (100, 207832), (160, 129895), (166, 125200), (200, 103916), (313, 66400), (332, 62600), (400, 51958), (415, 50080), (626, 33200), (664, 31300), (800, 25979), (830, 25040), (1252, 16600), (1328, 15650), (1565, 13280), (1660, 12520), (2075, 10016), (2504, 8300), (2656, 7825), (3130, 6640), (3320, 6260), (4150, 5008)]