28047580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{241}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 67448304

約数和(自身を除く): 39400724

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 241, 253, 460, 482, 506, 529, 964, 1012, 1058, 1205, 1265, 2116, 2410, 2530, 2645, 2651, 4820, 5060, 5290, 5302, 5543, 5819, 10580, 10604, 11086, 11638, 13255, 22172, 23276, 26510, 27715, 29095, 53020, 55430, 58190, 60973, 110860, 116380, 121946, 127489, 243892, 254978, 304865, 509956, 609730, 637445, 1219460, 1274890, 1402379, 2549780, 2804758, 5609516, 7011895, 14023790, 28047580]

約数ペア:

[(1, 28047580), (2, 14023790), (4, 7011895), (5, 5609516), (10, 2804758), (11, 2549780), (20, 1402379), (22, 1274890), (23, 1219460), (44, 637445), (46, 609730), (55, 509956), (92, 304865), (110, 254978), (115, 243892), (220, 127489), (230, 121946), (241, 116380), (253, 110860), (460, 60973), (482, 58190), (506, 55430), (529, 53020), (964, 29095), (1012, 27715), (1058, 26510), (1205, 23276), (1265, 22172), (2116, 13255), (2410, 11638), (2530, 11086), (2645, 10604), (2651, 10580), (4820, 5819), (5060, 5543), (5290, 5302)]