155281480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{1291}}^1$

素因数の和:1430

約数の個数: 64

約数和(自身を含む): 364654080

約数和(自身を除く): 209372600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 97, 124, 155, 194, 248, 310, 388, 485, 620, 776, 970, 1240, 1291, 1940, 2582, 3007, 3880, 5164, 6014, 6455, 10328, 12028, 12910, 15035, 24056, 25820, 30070, 40021, 51640, 60140, 80042, 120280, 125227, 160084, 200105, 250454, 320168, 400210, 500908, 626135, 800420, 1001816, 1252270, 1600840, 2504540, 3882037, 5009080, 7764074, 15528148, 19410185, 31056296, 38820370, 77640740, 155281480]

約数ペア:

[(1, 155281480), (2, 77640740), (4, 38820370), (5, 31056296), (8, 19410185), (10, 15528148), (20, 7764074), (31, 5009080), (40, 3882037), (62, 2504540), (97, 1600840), (124, 1252270), (155, 1001816), (194, 800420), (248, 626135), (310, 500908), (388, 400210), (485, 320168), (620, 250454), (776, 200105), (970, 160084), (1240, 125227), (1291, 120280), (1940, 80042), (2582, 60140), (3007, 51640), (3880, 40021), (5164, 30070), (6014, 25820), (6455, 24056), (10328, 15035), (12028, 12910)]