20950236

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:419

約数の個数: 72

約数和(自身を含む): 56456400

約数和(自身を除く): 35506164

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 109, 114, 171, 218, 228, 281, 327, 342, 436, 562, 654, 684, 843, 981, 1124, 1308, 1686, 1962, 2071, 2529, 3372, 3924, 4142, 5058, 5339, 6213, 8284, 10116, 10678, 12426, 16017, 18639, 21356, 24852, 30629, 32034, 37278, 48051, 61258, 64068, 74556, 91887, 96102, 122516, 183774, 192204, 275661, 367548, 551322, 581951, 1102644, 1163902, 1745853, 2327804, 3491706, 5237559, 6983412, 10475118, 20950236]

約数ペア:

[(1, 20950236), (2, 10475118), (3, 6983412), (4, 5237559), (6, 3491706), (9, 2327804), (12, 1745853), (18, 1163902), (19, 1102644), (36, 581951), (38, 551322), (57, 367548), (76, 275661), (109, 192204), (114, 183774), (171, 122516), (218, 96102), (228, 91887), (281, 74556), (327, 64068), (342, 61258), (436, 48051), (562, 37278), (654, 32034), (684, 30629), (843, 24852), (981, 21356), (1124, 18639), (1308, 16017), (1686, 12426), (1962, 10678), (2071, 10116), (2529, 8284), (3372, 6213), (3924, 5339), (4142, 5058)]