20710890

素因数分解:

$2^1\times 3^7\times 5^1\times {\mathrm{947}}^1$

素因数の和:975

約数の個数: 64

約数和(自身を含む): 55969920

約数和(自身を除く): 35259030

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 729, 810, 947, 1215, 1458, 1894, 2187, 2430, 2841, 3645, 4374, 4735, 5682, 7290, 8523, 9470, 10935, 14205, 17046, 21870, 25569, 28410, 42615, 51138, 76707, 85230, 127845, 153414, 230121, 255690, 383535, 460242, 690363, 767070, 1150605, 1380726, 2071089, 2301210, 3451815, 4142178, 6903630, 10355445, 20710890]

約数ペア:

[(1, 20710890), (2, 10355445), (3, 6903630), (5, 4142178), (6, 3451815), (9, 2301210), (10, 2071089), (15, 1380726), (18, 1150605), (27, 767070), (30, 690363), (45, 460242), (54, 383535), (81, 255690), (90, 230121), (135, 153414), (162, 127845), (243, 85230), (270, 76707), (405, 51138), (486, 42615), (729, 28410), (810, 25569), (947, 21870), (1215, 17046), (1458, 14205), (1894, 10935), (2187, 9470), (2430, 8523), (2841, 7290), (3645, 5682), (4374, 4735)]