251830540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{4019}}^1$

素因数の和:4282

約数の個数: 48

約数和(自身を含む): 572029920

約数和(自身を除く): 320199380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 241, 260, 482, 964, 1205, 2410, 3133, 4019, 4820, 6266, 8038, 12532, 15665, 16076, 20095, 31330, 40190, 52247, 62660, 80380, 104494, 208988, 261235, 522470, 968579, 1044940, 1937158, 3874316, 4842895, 9685790, 12591527, 19371580, 25183054, 50366108, 62957635, 125915270, 251830540]

約数ペア:

[(1, 251830540), (2, 125915270), (4, 62957635), (5, 50366108), (10, 25183054), (13, 19371580), (20, 12591527), (26, 9685790), (52, 4842895), (65, 3874316), (130, 1937158), (241, 1044940), (260, 968579), (482, 522470), (964, 261235), (1205, 208988), (2410, 104494), (3133, 80380), (4019, 62660), (4820, 52247), (6266, 40190), (8038, 31330), (12532, 20095), (15665, 16076)]