64373900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1993}}^1$

素因数の和:2043

約数の個数: 72

約数和(自身を含む): 155771280

約数和(自身を除く): 91397380

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 25, 34, 38, 50, 68, 76, 85, 95, 100, 170, 190, 323, 340, 380, 425, 475, 646, 850, 950, 1292, 1615, 1700, 1900, 1993, 3230, 3986, 6460, 7972, 8075, 9965, 16150, 19930, 32300, 33881, 37867, 39860, 49825, 67762, 75734, 99650, 135524, 151468, 169405, 189335, 199300, 338810, 378670, 643739, 677620, 757340, 847025, 946675, 1287478, 1694050, 1893350, 2574956, 3218695, 3388100, 3786700, 6437390, 12874780, 16093475, 32186950, 64373900]

約数ペア:

[(1, 64373900), (2, 32186950), (4, 16093475), (5, 12874780), (10, 6437390), (17, 3786700), (19, 3388100), (20, 3218695), (25, 2574956), (34, 1893350), (38, 1694050), (50, 1287478), (68, 946675), (76, 847025), (85, 757340), (95, 677620), (100, 643739), (170, 378670), (190, 338810), (323, 199300), (340, 189335), (380, 169405), (425, 151468), (475, 135524), (646, 99650), (850, 75734), (950, 67762), (1292, 49825), (1615, 39860), (1700, 37867), (1900, 33881), (1993, 32300), (3230, 19930), (3986, 16150), (6460, 9965), (7972, 8075)]