168381460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1607}}^1$

素因数の和:1673

約数の個数: 72

約数和(自身を含む): 395490816

約数和(自身を除く): 227109356

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 169, 260, 310, 338, 403, 620, 676, 806, 845, 1607, 1612, 1690, 2015, 3214, 3380, 4030, 5239, 6428, 8035, 8060, 10478, 16070, 20891, 20956, 26195, 32140, 41782, 49817, 52390, 83564, 99634, 104455, 104780, 199268, 208910, 249085, 271583, 417820, 498170, 543166, 647621, 996340, 1086332, 1295242, 1357915, 2590484, 2715830, 3238105, 5431660, 6476210, 8419073, 12952420, 16838146, 33676292, 42095365, 84190730, 168381460]

約数ペア:

[(1, 168381460), (2, 84190730), (4, 42095365), (5, 33676292), (10, 16838146), (13, 12952420), (20, 8419073), (26, 6476210), (31, 5431660), (52, 3238105), (62, 2715830), (65, 2590484), (124, 1357915), (130, 1295242), (155, 1086332), (169, 996340), (260, 647621), (310, 543166), (338, 498170), (403, 417820), (620, 271583), (676, 249085), (806, 208910), (845, 199268), (1607, 104780), (1612, 104455), (1690, 99634), (2015, 83564), (3214, 52390), (3380, 49817), (4030, 41782), (5239, 32140), (6428, 26195), (8035, 20956), (8060, 20891), (10478, 16070)]