20145977880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23983307}}^1$

素因数の和:23983328

約数の個数: 64

約数和(自身を含む): 69071927040

約数和(自身を除く): 48925949160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23983307, 47966614, 71949921, 95933228, 119916535, 143899842, 167883149, 191866456, 239833070, 287799684, 335766298, 359749605, 479666140, 503649447, 575599368, 671532596, 719499210, 839415745, 959332280, 1007298894, 1343065192, 1438998420, 1678831490, 2014597788, 2518247235, 2877996840, 3357662980, 4029195576, 5036494470, 6715325960, 10072988940, 20145977880]

約数ペア:

[(1, 20145977880), (2, 10072988940), (3, 6715325960), (4, 5036494470), (5, 4029195576), (6, 3357662980), (7, 2877996840), (8, 2518247235), (10, 2014597788), (12, 1678831490), (14, 1438998420), (15, 1343065192), (20, 1007298894), (21, 959332280), (24, 839415745), (28, 719499210), (30, 671532596), (35, 575599368), (40, 503649447), (42, 479666140), (56, 359749605), (60, 335766298), (70, 287799684), (84, 239833070), (105, 191866456), (120, 167883149), (140, 143899842), (168, 119916535), (210, 95933228), (280, 71949921), (420, 47966614), (840, 23983307)]