1999291250

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1499}}^1$

素因数の和:1629

約数の個数: 80

約数和(自身を含む): 4133052000

約数和(自身を除く): 2133760750

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 97, 110, 125, 194, 250, 275, 485, 550, 625, 970, 1067, 1250, 1375, 1499, 2134, 2425, 2750, 2998, 4850, 5335, 6875, 7495, 10670, 12125, 13750, 14990, 16489, 24250, 26675, 32978, 37475, 53350, 60625, 74950, 82445, 121250, 133375, 145403, 164890, 187375, 266750, 290806, 374750, 412225, 666875, 727015, 824450, 936875, 1333750, 1454030, 1599433, 1873750, 2061125, 3198866, 3635075, 4122250, 7270150, 7997165, 10305625, 15994330, 18175375, 20611250, 36350750, 39985825, 79971650, 90876875, 181753750, 199929125, 399858250, 999645625, 1999291250]

約数ペア:

[(1, 1999291250), (2, 999645625), (5, 399858250), (10, 199929125), (11, 181753750), (22, 90876875), (25, 79971650), (50, 39985825), (55, 36350750), (97, 20611250), (110, 18175375), (125, 15994330), (194, 10305625), (250, 7997165), (275, 7270150), (485, 4122250), (550, 3635075), (625, 3198866), (970, 2061125), (1067, 1873750), (1250, 1599433), (1375, 1454030), (1499, 1333750), (2134, 936875), (2425, 824450), (2750, 727015), (2998, 666875), (4850, 412225), (5335, 374750), (6875, 290806), (7495, 266750), (10670, 187375), (12125, 164890), (13750, 145403), (14990, 133375), (16489, 121250), (24250, 82445), (26675, 74950), (32978, 60625), (37475, 53350)]