72173270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17909}}^1$

素因数の和:17960

約数の個数: 32

約数和(自身を含む): 144426240

約数和(自身を除く): 72252970

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 17909, 35818, 89545, 179090, 232817, 465634, 555179, 1110358, 1164085, 2328170, 2775895, 5551790, 7217327, 14434654, 36086635, 72173270]

約数ペア:

[(1, 72173270), (2, 36086635), (5, 14434654), (10, 7217327), (13, 5551790), (26, 2775895), (31, 2328170), (62, 1164085), (65, 1110358), (130, 555179), (155, 465634), (310, 232817), (403, 179090), (806, 89545), (2015, 35818), (4030, 17909)]