656116780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{27361}}^1$

素因数の和:27490

約数の個数: 48

約数和(自身を含む): 1516949280

約数和(自身を除く): 860832500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1199, 2180, 2398, 4796, 5995, 11990, 23980, 27361, 54722, 109444, 136805, 273610, 300971, 547220, 601942, 1203884, 1504855, 2982349, 3009710, 5964698, 6019420, 11929396, 14911745, 29823490, 32805839, 59646980, 65611678, 131223356, 164029195, 328058390, 656116780]

約数ペア:

[(1, 656116780), (2, 328058390), (4, 164029195), (5, 131223356), (10, 65611678), (11, 59646980), (20, 32805839), (22, 29823490), (44, 14911745), (55, 11929396), (109, 6019420), (110, 5964698), (218, 3009710), (220, 2982349), (436, 1504855), (545, 1203884), (1090, 601942), (1199, 547220), (2180, 300971), (2398, 273610), (4796, 136805), (5995, 109444), (11990, 54722), (23980, 27361)]