20865956580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{154769}}^1$

素因数の和:154898

約数の個数: 144

約数和(自身を含む): 73011818880

約数和(自身を除く): 52145862300

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 107, 126, 140, 180, 210, 214, 252, 315, 321, 420, 428, 535, 630, 642, 749, 963, 1070, 1260, 1284, 1498, 1605, 1926, 2140, 2247, 2996, 3210, 3745, 3852, 4494, 4815, 6420, 6741, 7490, 8988, 9630, 11235, 13482, 14980, 19260, 22470, 26964, 33705, 44940, 67410, 134820, 154769, 309538, 464307, 619076, 773845, 928614, 1083383, 1392921, 1547690, 1857228, 2166766, 2321535, 2785842, 3095380, 3250149, 4333532, 4643070, 5416915, 5571684, 6500298, 6964605, 9286140, 9750447, 10833830, 13000596, 13929210, 16250745, 16560283, 19500894, 21667660, 27858420, 32501490, 33120566, 39001788, 48752235, 49680849, 65002980, 66241132, 82801415, 97504470, 99361698, 115921981, 149042547, 165602830, 195008940, 198723396, 231843962, 248404245, 298085094, 331205660, 347765943, 463687924, 496808490, 579609905, 596170188, 695531886, 745212735, 993616980, 1043297829, 1159219810, 1391063772, 1490425470, 1738829715, 2086595658, 2318439620, 2980850940, 3477659430, 4173191316, 5216489145, 6955318860, 10432978290, 20865956580]

約数ペア:

[(1, 20865956580), (2, 10432978290), (3, 6955318860), (4, 5216489145), (5, 4173191316), (6, 3477659430), (7, 2980850940), (9, 2318439620), (10, 2086595658), (12, 1738829715), (14, 1490425470), (15, 1391063772), (18, 1159219810), (20, 1043297829), (21, 993616980), (28, 745212735), (30, 695531886), (35, 596170188), (36, 579609905), (42, 496808490), (45, 463687924), (60, 347765943), (63, 331205660), (70, 298085094), (84, 248404245), (90, 231843962), (105, 198723396), (107, 195008940), (126, 165602830), (140, 149042547), (180, 115921981), (210, 99361698), (214, 97504470), (252, 82801415), (315, 66241132), (321, 65002980), (420, 49680849), (428, 48752235), (535, 39001788), (630, 33120566), (642, 32501490), (749, 27858420), (963, 21667660), (1070, 19500894), (1260, 16560283), (1284, 16250745), (1498, 13929210), (1605, 13000596), (1926, 10833830), (2140, 9750447), (2247, 9286140), (2996, 6964605), (3210, 6500298), (3745, 5571684), (3852, 5416915), (4494, 4643070), (4815, 4333532), (6420, 3250149), (6741, 3095380), (7490, 2785842), (8988, 2321535), (9630, 2166766), (11235, 1857228), (13482, 1547690), (14980, 1392921), (19260, 1083383), (22470, 928614), (26964, 773845), (33705, 619076), (44940, 464307), (67410, 309538), (134820, 154769)]