808808

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:138

約数の個数: 64

約数和(自身を含む): 2056320

約数和(自身を除く): 1247512

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 101, 104, 143, 154, 182, 202, 286, 308, 364, 404, 572, 616, 707, 728, 808, 1001, 1111, 1144, 1313, 1414, 2002, 2222, 2626, 2828, 4004, 4444, 5252, 5656, 7777, 8008, 8888, 9191, 10504, 14443, 15554, 18382, 28886, 31108, 36764, 57772, 62216, 73528, 101101, 115544, 202202, 404404, 808808]

約数ペア:

[(1, 808808), (2, 404404), (4, 202202), (7, 115544), (8, 101101), (11, 73528), (13, 62216), (14, 57772), (22, 36764), (26, 31108), (28, 28886), (44, 18382), (52, 15554), (56, 14443), (77, 10504), (88, 9191), (91, 8888), (101, 8008), (104, 7777), (143, 5656), (154, 5252), (182, 4444), (202, 4004), (286, 2828), (308, 2626), (364, 2222), (404, 2002), (572, 1414), (616, 1313), (707, 1144), (728, 1111), (808, 1001)]