161061725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 225949824

約数和(自身を除く): 64888099

約数列:

[1, 5, 11, 25, 55, 71, 73, 113, 275, 355, 365, 565, 781, 803, 1243, 1775, 1825, 2825, 3905, 4015, 5183, 6215, 8023, 8249, 19525, 20075, 25915, 31075, 40115, 41245, 57013, 88253, 90739, 129575, 200575, 206225, 285065, 441265, 453695, 585679, 1425325, 2206325, 2268475, 2928395, 6442469, 14641975, 32212345, 161061725]

約数ペア:

[(1, 161061725), (5, 32212345), (11, 14641975), (25, 6442469), (55, 2928395), (71, 2268475), (73, 2206325), (113, 1425325), (275, 585679), (355, 453695), (365, 441265), (565, 285065), (781, 206225), (803, 200575), (1243, 129575), (1775, 90739), (1825, 88253), (2825, 57013), (3905, 41245), (4015, 40115), (5183, 31075), (6215, 25915), (8023, 20075), (8249, 19525)]