212940728

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{26591}}^1$

素因数の和:26628

約数の個数: 64

約数和(自身を含む): 536094720

約数和(自身を除く): 323153992

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 4004, 8008, 26591, 53182, 106364, 186137, 212728, 292501, 345683, 372274, 585002, 691366, 744548, 1170004, 1382732, 1489096, 2047507, 2340008, 2419781, 2765464, 3802513, 4095014, 4839562, 7605026, 8190028, 9679124, 15210052, 16380056, 19358248, 26617591, 30420104, 53235182, 106470364, 212940728]

約数ペア:

[(1, 212940728), (2, 106470364), (4, 53235182), (7, 30420104), (8, 26617591), (11, 19358248), (13, 16380056), (14, 15210052), (22, 9679124), (26, 8190028), (28, 7605026), (44, 4839562), (52, 4095014), (56, 3802513), (77, 2765464), (88, 2419781), (91, 2340008), (104, 2047507), (143, 1489096), (154, 1382732), (182, 1170004), (286, 744548), (308, 691366), (364, 585002), (572, 372274), (616, 345683), (728, 292501), (1001, 212728), (1144, 186137), (2002, 106364), (4004, 53182), (8008, 26591)]