81908172

素因数分解:

$2^2\times 3^4\times {\mathrm{101}}^1\times {\mathrm{2503}}^1$

素因数の和:2620

約数の個数: 60

約数和(自身を含む): 216330576

約数和(自身を除く): 134422404

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 101, 108, 162, 202, 303, 324, 404, 606, 909, 1212, 1818, 2503, 2727, 3636, 5006, 5454, 7509, 8181, 10012, 10908, 15018, 16362, 22527, 30036, 32724, 45054, 67581, 90108, 135162, 202743, 252803, 270324, 405486, 505606, 758409, 810972, 1011212, 1516818, 2275227, 3033636, 4550454, 6825681, 9100908, 13651362, 20477043, 27302724, 40954086, 81908172]

約数ペア:

[(1, 81908172), (2, 40954086), (3, 27302724), (4, 20477043), (6, 13651362), (9, 9100908), (12, 6825681), (18, 4550454), (27, 3033636), (36, 2275227), (54, 1516818), (81, 1011212), (101, 810972), (108, 758409), (162, 505606), (202, 405486), (303, 270324), (324, 252803), (404, 202743), (606, 135162), (909, 90108), (1212, 67581), (1818, 45054), (2503, 32724), (2727, 30036), (3636, 22527), (5006, 16362), (5454, 15018), (7509, 10908), (8181, 10012)]