20965500

素因数分解:

$2^2\times 3^3\times 5^3\times {\mathrm{1553}}^1$

素因数の和:1581

約数の個数: 96

約数和(自身を含む): 67878720

約数和(自身を除く): 46913220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 90, 100, 108, 125, 135, 150, 180, 225, 250, 270, 300, 375, 450, 500, 540, 675, 750, 900, 1125, 1350, 1500, 1553, 2250, 2700, 3106, 3375, 4500, 4659, 6212, 6750, 7765, 9318, 13500, 13977, 15530, 18636, 23295, 27954, 31060, 38825, 41931, 46590, 55908, 69885, 77650, 83862, 93180, 116475, 139770, 155300, 167724, 194125, 209655, 232950, 279540, 349425, 388250, 419310, 465900, 582375, 698850, 776500, 838620, 1048275, 1164750, 1397700, 1747125, 2096550, 2329500, 3494250, 4193100, 5241375, 6988500, 10482750, 20965500]

約数ペア:

[(1, 20965500), (2, 10482750), (3, 6988500), (4, 5241375), (5, 4193100), (6, 3494250), (9, 2329500), (10, 2096550), (12, 1747125), (15, 1397700), (18, 1164750), (20, 1048275), (25, 838620), (27, 776500), (30, 698850), (36, 582375), (45, 465900), (50, 419310), (54, 388250), (60, 349425), (75, 279540), (90, 232950), (100, 209655), (108, 194125), (125, 167724), (135, 155300), (150, 139770), (180, 116475), (225, 93180), (250, 83862), (270, 77650), (300, 69885), (375, 55908), (450, 46590), (500, 41931), (540, 38825), (675, 31060), (750, 27954), (900, 23295), (1125, 18636), (1350, 15530), (1500, 13977), (1553, 13500), (2250, 9318), (2700, 7765), (3106, 6750), (3375, 6212), (4500, 4659)]