28106078

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 57576960

約数和(自身を除く): 29470882

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 101, 139, 143, 154, 182, 202, 278, 286, 707, 973, 1001, 1111, 1313, 1414, 1529, 1807, 1946, 2002, 2222, 2626, 3058, 3614, 7777, 9191, 10703, 12649, 14039, 14443, 15554, 18382, 19877, 21406, 25298, 28078, 28886, 39754, 98273, 101101, 139139, 154429, 182507, 196546, 202202, 278278, 308858, 365014, 1081003, 1277549, 2007577, 2162006, 2555098, 4015154, 14053039, 28106078]

約数ペア:

[(1, 28106078), (2, 14053039), (7, 4015154), (11, 2555098), (13, 2162006), (14, 2007577), (22, 1277549), (26, 1081003), (77, 365014), (91, 308858), (101, 278278), (139, 202202), (143, 196546), (154, 182507), (182, 154429), (202, 139139), (278, 101101), (286, 98273), (707, 39754), (973, 28886), (1001, 28078), (1111, 25298), (1313, 21406), (1414, 19877), (1529, 18382), (1807, 15554), (1946, 14443), (2002, 14039), (2222, 12649), (2626, 10703), (3058, 9191), (3614, 7777)]