18401025

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 32984000

約数和(自身を除く): 14582975

約数列:

[1, 3, 5, 15, 19, 25, 37, 57, 75, 95, 111, 185, 285, 349, 475, 555, 703, 925, 1047, 1425, 1745, 2109, 2775, 3515, 5235, 6631, 8725, 10545, 12913, 17575, 19893, 26175, 33155, 38739, 52725, 64565, 99465, 165775, 193695, 245347, 322825, 497325, 736041, 968475, 1226735, 3680205, 6133675, 18401025]

約数ペア:

[(1, 18401025), (3, 6133675), (5, 3680205), (15, 1226735), (19, 968475), (25, 736041), (37, 497325), (57, 322825), (75, 245347), (95, 193695), (111, 165775), (185, 99465), (285, 64565), (349, 52725), (475, 38739), (555, 33155), (703, 26175), (925, 19893), (1047, 17575), (1425, 12913), (1745, 10545), (2109, 8725), (2775, 6631), (3515, 5235)]