20925540

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12917}}^1$

素因数の和:12938

約数の個数: 60

約数和(自身を含む): 65649276

約数和(自身を除く): 44723736

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 12917, 25834, 38751, 51668, 64585, 77502, 116253, 129170, 155004, 193755, 232506, 258340, 348759, 387510, 465012, 581265, 697518, 775020, 1046277, 1162530, 1395036, 1743795, 2092554, 2325060, 3487590, 4185108, 5231385, 6975180, 10462770, 20925540]

約数ペア:

[(1, 20925540), (2, 10462770), (3, 6975180), (4, 5231385), (5, 4185108), (6, 3487590), (9, 2325060), (10, 2092554), (12, 1743795), (15, 1395036), (18, 1162530), (20, 1046277), (27, 775020), (30, 697518), (36, 581265), (45, 465012), (54, 387510), (60, 348759), (81, 258340), (90, 232506), (108, 193755), (135, 155004), (162, 129170), (180, 116253), (270, 77502), (324, 64585), (405, 51668), (540, 38751), (810, 25834), (1620, 12917)]