404404

素因数分解:

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

素因数の和:136

約数の個数: 48

約数和(自身を含む): 959616

約数和(自身を除く): 555212

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 101, 143, 154, 182, 202, 286, 308, 364, 404, 572, 707, 1001, 1111, 1313, 1414, 2002, 2222, 2626, 2828, 4004, 4444, 5252, 7777, 9191, 14443, 15554, 18382, 28886, 31108, 36764, 57772, 101101, 202202, 404404]

約数ペア:

[(1, 404404), (2, 202202), (4, 101101), (7, 57772), (11, 36764), (13, 31108), (14, 28886), (22, 18382), (26, 15554), (28, 14443), (44, 9191), (52, 7777), (77, 5252), (91, 4444), (101, 4004), (143, 2828), (154, 2626), (182, 2222), (202, 2002), (286, 1414), (308, 1313), (364, 1111), (404, 1001), (572, 707)]