28638675

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9791}}^1$

素因数の和:9820

約数の個数: 36

約数和(自身を含む): 55246464

約数和(自身を除く): 26607789

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 9791, 29373, 48955, 88119, 127283, 146865, 244775, 381849, 440595, 636415, 734325, 1145547, 1909245, 2202975, 3182075, 5727735, 9546225, 28638675]

約数ペア:

[(1, 28638675), (3, 9546225), (5, 5727735), (9, 3182075), (13, 2202975), (15, 1909245), (25, 1145547), (39, 734325), (45, 636415), (65, 440595), (75, 381849), (117, 244775), (195, 146865), (225, 127283), (325, 88119), (585, 48955), (975, 29373), (2925, 9791)]