15805020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{311}}^1$

素因数の和:352

約数の個数: 144

約数和(自身を含む): 55770624

約数和(自身を除く): 39965604

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 121, 132, 140, 154, 165, 210, 220, 231, 242, 308, 311, 330, 363, 385, 420, 462, 484, 605, 622, 660, 726, 770, 847, 924, 933, 1155, 1210, 1244, 1452, 1540, 1555, 1694, 1815, 1866, 2177, 2310, 2420, 2541, 3110, 3388, 3421, 3630, 3732, 4235, 4354, 4620, 4665, 5082, 6220, 6531, 6842, 7260, 8470, 8708, 9330, 10164, 10263, 10885, 12705, 13062, 13684, 16940, 17105, 18660, 20526, 21770, 23947, 25410, 26124, 32655, 34210, 37631, 41052, 43540, 47894, 50820, 51315, 65310, 68420, 71841, 75262, 95788, 102630, 112893, 119735, 130620, 143682, 150524, 188155, 205260, 225786, 239470, 263417, 287364, 359205, 376310, 451572, 478940, 526834, 564465, 718410, 752620, 790251, 1053668, 1128930, 1317085, 1436820, 1580502, 2257860, 2634170, 3161004, 3951255, 5268340, 7902510, 15805020]

約数ペア:

[(1, 15805020), (2, 7902510), (3, 5268340), (4, 3951255), (5, 3161004), (6, 2634170), (7, 2257860), (10, 1580502), (11, 1436820), (12, 1317085), (14, 1128930), (15, 1053668), (20, 790251), (21, 752620), (22, 718410), (28, 564465), (30, 526834), (33, 478940), (35, 451572), (42, 376310), (44, 359205), (55, 287364), (60, 263417), (66, 239470), (70, 225786), (77, 205260), (84, 188155), (105, 150524), (110, 143682), (121, 130620), (132, 119735), (140, 112893), (154, 102630), (165, 95788), (210, 75262), (220, 71841), (231, 68420), (242, 65310), (308, 51315), (311, 50820), (330, 47894), (363, 43540), (385, 41052), (420, 37631), (462, 34210), (484, 32655), (605, 26124), (622, 25410), (660, 23947), (726, 21770), (770, 20526), (847, 18660), (924, 17105), (933, 16940), (1155, 13684), (1210, 13062), (1244, 12705), (1452, 10885), (1540, 10263), (1555, 10164), (1694, 9330), (1815, 8708), (1866, 8470), (2177, 7260), (2310, 6842), (2420, 6531), (2541, 6220), (3110, 5082), (3388, 4665), (3421, 4620), (3630, 4354), (3732, 4235)]