19702890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{7549}}^1$

素因数の和:7591

約数の個数: 48

約数和(自身を含む): 53001000

約数和(自身を除く): 33298110

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 174, 261, 290, 435, 522, 870, 1305, 2610, 7549, 15098, 22647, 37745, 45294, 67941, 75490, 113235, 135882, 218921, 226470, 339705, 437842, 656763, 679410, 1094605, 1313526, 1970289, 2189210, 3283815, 3940578, 6567630, 9851445, 19702890]

約数ペア:

[(1, 19702890), (2, 9851445), (3, 6567630), (5, 3940578), (6, 3283815), (9, 2189210), (10, 1970289), (15, 1313526), (18, 1094605), (29, 679410), (30, 656763), (45, 437842), (58, 339705), (87, 226470), (90, 218921), (145, 135882), (174, 113235), (261, 75490), (290, 67941), (435, 45294), (522, 37745), (870, 22647), (1305, 15098), (2610, 7549)]