20001455880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{449269}}^1$

素因数の和:449343

約数の個数: 128

約数和(自身を含む): 69870470400

約数和(自身を除く): 49869014520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 53, 56, 60, 70, 84, 105, 106, 120, 140, 159, 168, 210, 212, 265, 280, 318, 371, 420, 424, 530, 636, 742, 795, 840, 1060, 1113, 1272, 1484, 1590, 1855, 2120, 2226, 2968, 3180, 3710, 4452, 5565, 6360, 7420, 8904, 11130, 14840, 22260, 44520, 449269, 898538, 1347807, 1797076, 2246345, 2695614, 3144883, 3594152, 4492690, 5391228, 6289766, 6739035, 8985380, 9434649, 10782456, 12579532, 13478070, 15724415, 17970760, 18869298, 23811257, 25159064, 26956140, 31448830, 37738596, 47173245, 47622514, 53912280, 62897660, 71433771, 75477192, 94346490, 95245028, 119056285, 125795320, 142867542, 166678799, 188692980, 190490056, 238112570, 285735084, 333357598, 357168855, 377385960, 476225140, 500036397, 571470168, 666715196, 714337710, 833393995, 952450280, 1000072794, 1333430392, 1428675420, 1666787990, 2000145588, 2500181985, 2857350840, 3333575980, 4000291176, 5000363970, 6667151960, 10000727940, 20001455880]

約数ペア:

[(1, 20001455880), (2, 10000727940), (3, 6667151960), (4, 5000363970), (5, 4000291176), (6, 3333575980), (7, 2857350840), (8, 2500181985), (10, 2000145588), (12, 1666787990), (14, 1428675420), (15, 1333430392), (20, 1000072794), (21, 952450280), (24, 833393995), (28, 714337710), (30, 666715196), (35, 571470168), (40, 500036397), (42, 476225140), (53, 377385960), (56, 357168855), (60, 333357598), (70, 285735084), (84, 238112570), (105, 190490056), (106, 188692980), (120, 166678799), (140, 142867542), (159, 125795320), (168, 119056285), (210, 95245028), (212, 94346490), (265, 75477192), (280, 71433771), (318, 62897660), (371, 53912280), (420, 47622514), (424, 47173245), (530, 37738596), (636, 31448830), (742, 26956140), (795, 25159064), (840, 23811257), (1060, 18869298), (1113, 17970760), (1272, 15724415), (1484, 13478070), (1590, 12579532), (1855, 10782456), (2120, 9434649), (2226, 8985380), (2968, 6739035), (3180, 6289766), (3710, 5391228), (4452, 4492690), (5565, 3594152), (6360, 3144883), (7420, 2695614), (8904, 2246345), (11130, 1797076), (14840, 1347807), (22260, 898538), (44520, 449269)]