28945990

素因数分解:

$2^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{691}}^1$

素因数の和:828

約数の個数: 32

約数和(自身を含む): 53809920

約数和(自身を除く): 24863930

約数列:

[1, 2, 5, 10, 59, 71, 118, 142, 295, 355, 590, 691, 710, 1382, 3455, 4189, 6910, 8378, 20945, 40769, 41890, 49061, 81538, 98122, 203845, 245305, 407690, 490610, 2894599, 5789198, 14472995, 28945990]

約数ペア:

[(1, 28945990), (2, 14472995), (5, 5789198), (10, 2894599), (59, 490610), (71, 407690), (118, 245305), (142, 203845), (295, 98122), (355, 81538), (590, 49061), (691, 41890), (710, 40769), (1382, 20945), (3455, 8378), (4189, 6910)]