20656044

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:347

約数の個数: 72

約数和(自身を含む): 54792192

約数和(自身を除く): 34136148

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 83, 93, 124, 166, 186, 223, 249, 279, 332, 372, 446, 498, 558, 669, 747, 892, 996, 1116, 1338, 1494, 2007, 2573, 2676, 2988, 4014, 5146, 6913, 7719, 8028, 10292, 13826, 15438, 18509, 20739, 23157, 27652, 30876, 37018, 41478, 46314, 55527, 62217, 74036, 82956, 92628, 111054, 124434, 166581, 222108, 248868, 333162, 573779, 666324, 1147558, 1721337, 2295116, 3442674, 5164011, 6885348, 10328022, 20656044]

約数ペア:

[(1, 20656044), (2, 10328022), (3, 6885348), (4, 5164011), (6, 3442674), (9, 2295116), (12, 1721337), (18, 1147558), (31, 666324), (36, 573779), (62, 333162), (83, 248868), (93, 222108), (124, 166581), (166, 124434), (186, 111054), (223, 92628), (249, 82956), (279, 74036), (332, 62217), (372, 55527), (446, 46314), (498, 41478), (558, 37018), (669, 30876), (747, 27652), (892, 23157), (996, 20739), (1116, 18509), (1338, 15438), (1494, 13826), (2007, 10292), (2573, 8028), (2676, 7719), (2988, 6913), (4014, 5146)]