2021285560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1\times {\mathrm{691}}^1$

素因数の和:1077

約数の個数: 128

約数和(自身を含む): 5388963840

約数和(自身を除く): 3367678280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 337, 434, 620, 674, 691, 868, 1085, 1240, 1348, 1382, 1685, 1736, 2170, 2359, 2696, 2764, 3370, 3455, 4340, 4718, 4837, 5528, 6740, 6910, 8680, 9436, 9674, 10447, 11795, 13480, 13820, 18872, 19348, 20894, 21421, 23590, 24185, 27640, 38696, 41788, 42842, 47180, 48370, 52235, 73129, 83576, 85684, 94360, 96740, 104470, 107105, 146258, 149947, 171368, 193480, 208940, 214210, 232867, 292516, 299894, 365645, 417880, 428420, 465734, 585032, 599788, 731290, 749735, 856840, 931468, 1164335, 1199576, 1462580, 1499470, 1630069, 1862936, 2328670, 2925160, 2998940, 3260138, 4657340, 5997880, 6520276, 7218877, 8150345, 9314680, 13040552, 14437754, 16300690, 28875508, 32601380, 36094385, 50532139, 57751016, 65202760, 72188770, 101064278, 144377540, 202128556, 252660695, 288755080, 404257112, 505321390, 1010642780, 2021285560]

約数ペア:

[(1, 2021285560), (2, 1010642780), (4, 505321390), (5, 404257112), (7, 288755080), (8, 252660695), (10, 202128556), (14, 144377540), (20, 101064278), (28, 72188770), (31, 65202760), (35, 57751016), (40, 50532139), (56, 36094385), (62, 32601380), (70, 28875508), (124, 16300690), (140, 14437754), (155, 13040552), (217, 9314680), (248, 8150345), (280, 7218877), (310, 6520276), (337, 5997880), (434, 4657340), (620, 3260138), (674, 2998940), (691, 2925160), (868, 2328670), (1085, 1862936), (1240, 1630069), (1348, 1499470), (1382, 1462580), (1685, 1199576), (1736, 1164335), (2170, 931468), (2359, 856840), (2696, 749735), (2764, 731290), (3370, 599788), (3455, 585032), (4340, 465734), (4718, 428420), (4837, 417880), (5528, 365645), (6740, 299894), (6910, 292516), (8680, 232867), (9436, 214210), (9674, 208940), (10447, 193480), (11795, 171368), (13480, 149947), (13820, 146258), (18872, 107105), (19348, 104470), (20894, 96740), (21421, 94360), (23590, 85684), (24185, 83576), (27640, 73129), (38696, 52235), (41788, 48370), (42842, 47180)]