20780154

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1151}}^1$

素因数の和:1235

約数の個数: 48

約数和(自身を含む): 48522240

約数和(自身を除く): 27742086

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 59, 102, 118, 153, 177, 306, 354, 531, 1003, 1062, 1151, 2006, 2302, 3009, 3453, 6018, 6906, 9027, 10359, 18054, 19567, 20718, 39134, 58701, 67909, 117402, 135818, 176103, 203727, 352206, 407454, 611181, 1154453, 1222362, 2308906, 3463359, 6926718, 10390077, 20780154]

約数ペア:

[(1, 20780154), (2, 10390077), (3, 6926718), (6, 3463359), (9, 2308906), (17, 1222362), (18, 1154453), (34, 611181), (51, 407454), (59, 352206), (102, 203727), (118, 176103), (153, 135818), (177, 117402), (306, 67909), (354, 58701), (531, 39134), (1003, 20718), (1062, 19567), (1151, 18054), (2006, 10359), (2302, 9027), (3009, 6906), (3453, 6018)]