388786580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{30517}}^1$

素因数の和:30553

約数の個数: 72

約数和(自身を含む): 1022841288

約数和(自身を除く): 634054708

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 12740, 30517, 61034, 122068, 152585, 213619, 305170, 396721, 427238, 610340, 793442, 854476, 1068095, 1495333, 1586884, 1983605, 2136190, 2777047, 2990666, 3967210, 4272380, 5554094, 5981332, 7476665, 7934420, 11108188, 13885235, 14953330, 19439329, 27770470, 29906660, 38878658, 55540940, 77757316, 97196645, 194393290, 388786580]

約数ペア:

[(1, 388786580), (2, 194393290), (4, 97196645), (5, 77757316), (7, 55540940), (10, 38878658), (13, 29906660), (14, 27770470), (20, 19439329), (26, 14953330), (28, 13885235), (35, 11108188), (49, 7934420), (52, 7476665), (65, 5981332), (70, 5554094), (91, 4272380), (98, 3967210), (130, 2990666), (140, 2777047), (182, 2136190), (196, 1983605), (245, 1586884), (260, 1495333), (364, 1068095), (455, 854476), (490, 793442), (637, 610340), (910, 427238), (980, 396721), (1274, 305170), (1820, 213619), (2548, 152585), (3185, 122068), (6370, 61034), (12740, 30517)]