25161569140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{2389}}^1$

素因数の和:2645

約数の個数: 96

約数和(自身を含む): 54891799200

約数和(自身を除く): 29730230060

約数列:

[1, 2, 4, 5, 10, 20, 61, 89, 97, 122, 178, 194, 244, 305, 356, 388, 445, 485, 610, 890, 970, 1220, 1780, 1940, 2389, 4778, 5429, 5917, 8633, 9556, 10858, 11834, 11945, 17266, 21716, 23668, 23890, 27145, 29585, 34532, 43165, 47780, 54290, 59170, 86330, 108580, 118340, 145729, 172660, 212621, 231733, 291458, 425242, 463466, 526613, 582916, 728645, 850484, 926932, 1053226, 1063105, 1158665, 1457290, 2106452, 2126210, 2317330, 2633065, 2914580, 4252420, 4634660, 5266130, 10532260, 12969881, 14135713, 20624237, 25939762, 28271426, 41248474, 51879524, 56542852, 64849405, 70678565, 82496948, 103121185, 129698810, 141357130, 206242370, 259397620, 282714260, 412484740, 1258078457, 2516156914, 5032313828, 6290392285, 12580784570, 25161569140]

約数ペア:

[(1, 25161569140), (2, 12580784570), (4, 6290392285), (5, 5032313828), (10, 2516156914), (20, 1258078457), (61, 412484740), (89, 282714260), (97, 259397620), (122, 206242370), (178, 141357130), (194, 129698810), (244, 103121185), (305, 82496948), (356, 70678565), (388, 64849405), (445, 56542852), (485, 51879524), (610, 41248474), (890, 28271426), (970, 25939762), (1220, 20624237), (1780, 14135713), (1940, 12969881), (2389, 10532260), (4778, 5266130), (5429, 4634660), (5917, 4252420), (8633, 2914580), (9556, 2633065), (10858, 2317330), (11834, 2126210), (11945, 2106452), (17266, 1457290), (21716, 1158665), (23668, 1063105), (23890, 1053226), (27145, 926932), (29585, 850484), (34532, 728645), (43165, 582916), (47780, 526613), (54290, 463466), (59170, 425242), (86330, 291458), (108580, 231733), (118340, 212621), (145729, 172660)]