20569500

素因数分解:

$2^2\times 3^2\times 5^3\times 7^1\times {\mathrm{653}}^1$

素因数の和:685

約数の個数: 144

約数和(自身を含む): 74273472

約数和(自身を除く): 53703972

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 84, 90, 100, 105, 125, 126, 140, 150, 175, 180, 210, 225, 250, 252, 300, 315, 350, 375, 420, 450, 500, 525, 630, 653, 700, 750, 875, 900, 1050, 1125, 1260, 1306, 1500, 1575, 1750, 1959, 2100, 2250, 2612, 2625, 3150, 3265, 3500, 3918, 4500, 4571, 5250, 5877, 6300, 6530, 7836, 7875, 9142, 9795, 10500, 11754, 13060, 13713, 15750, 16325, 18284, 19590, 22855, 23508, 27426, 29385, 31500, 32650, 39180, 41139, 45710, 48975, 54852, 58770, 65300, 68565, 81625, 82278, 91420, 97950, 114275, 117540, 137130, 146925, 163250, 164556, 195900, 205695, 228550, 244875, 274260, 293850, 326500, 342825, 411390, 457100, 489750, 571375, 587700, 685650, 734625, 822780, 979500, 1028475, 1142750, 1371300, 1469250, 1714125, 2056950, 2285500, 2938500, 3428250, 4113900, 5142375, 6856500, 10284750, 20569500]

約数ペア:

[(1, 20569500), (2, 10284750), (3, 6856500), (4, 5142375), (5, 4113900), (6, 3428250), (7, 2938500), (9, 2285500), (10, 2056950), (12, 1714125), (14, 1469250), (15, 1371300), (18, 1142750), (20, 1028475), (21, 979500), (25, 822780), (28, 734625), (30, 685650), (35, 587700), (36, 571375), (42, 489750), (45, 457100), (50, 411390), (60, 342825), (63, 326500), (70, 293850), (75, 274260), (84, 244875), (90, 228550), (100, 205695), (105, 195900), (125, 164556), (126, 163250), (140, 146925), (150, 137130), (175, 117540), (180, 114275), (210, 97950), (225, 91420), (250, 82278), (252, 81625), (300, 68565), (315, 65300), (350, 58770), (375, 54852), (420, 48975), (450, 45710), (500, 41139), (525, 39180), (630, 32650), (653, 31500), (700, 29385), (750, 27426), (875, 23508), (900, 22855), (1050, 19590), (1125, 18284), (1260, 16325), (1306, 15750), (1500, 13713), (1575, 13060), (1750, 11754), (1959, 10500), (2100, 9795), (2250, 9142), (2612, 7875), (2625, 7836), (3150, 6530), (3265, 6300), (3500, 5877), (3918, 5250), (4500, 4571)]