161796199640

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2039}}^1\times {\mathrm{25111}}^1$

素因数の和:27240

約数の個数: 64

約数和(自身を含む): 368845056000

約数和(自身を除く): 207048856360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 2039, 3160, 4078, 8156, 10195, 16312, 20390, 25111, 40780, 50222, 81560, 100444, 125555, 161081, 200888, 251110, 322162, 502220, 644324, 805405, 1004440, 1288648, 1610810, 1983769, 3221620, 3967538, 6443240, 7935076, 9918845, 15870152, 19837690, 39675380, 51201329, 79350760, 102402658, 204805316, 256006645, 409610632, 512013290, 1024026580, 2048053160, 4044904991, 8089809982, 16179619964, 20224524955, 32359239928, 40449049910, 80898099820, 161796199640]

約数ペア:

[(1, 161796199640), (2, 80898099820), (4, 40449049910), (5, 32359239928), (8, 20224524955), (10, 16179619964), (20, 8089809982), (40, 4044904991), (79, 2048053160), (158, 1024026580), (316, 512013290), (395, 409610632), (632, 256006645), (790, 204805316), (1580, 102402658), (2039, 79350760), (3160, 51201329), (4078, 39675380), (8156, 19837690), (10195, 15870152), (16312, 9918845), (20390, 7935076), (25111, 6443240), (40780, 3967538), (50222, 3221620), (81560, 1983769), (100444, 1610810), (125555, 1288648), (161081, 1004440), (200888, 805405), (251110, 644324), (322162, 502220)]