20509500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{11}}^2\times {\mathrm{113}}^1$

素因数の和:157

約数の個数: 144

約数和(自身を含む): 66227616

約数和(自身を除く): 45718116

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 25, 30, 33, 44, 50, 55, 60, 66, 75, 100, 110, 113, 121, 125, 132, 150, 165, 220, 226, 242, 250, 275, 300, 330, 339, 363, 375, 452, 484, 500, 550, 565, 605, 660, 678, 726, 750, 825, 1100, 1130, 1210, 1243, 1356, 1375, 1452, 1500, 1650, 1695, 1815, 2260, 2420, 2486, 2750, 2825, 3025, 3300, 3390, 3630, 3729, 4125, 4972, 5500, 5650, 6050, 6215, 6780, 7260, 7458, 8250, 8475, 9075, 11300, 12100, 12430, 13673, 14125, 14916, 15125, 16500, 16950, 18150, 18645, 24860, 27346, 28250, 30250, 31075, 33900, 36300, 37290, 41019, 42375, 45375, 54692, 56500, 60500, 62150, 68365, 74580, 82038, 84750, 90750, 93225, 124300, 136730, 155375, 164076, 169500, 181500, 186450, 205095, 273460, 310750, 341825, 372900, 410190, 466125, 621500, 683650, 820380, 932250, 1025475, 1367300, 1709125, 1864500, 2050950, 3418250, 4101900, 5127375, 6836500, 10254750, 20509500]

約数ペア:

[(1, 20509500), (2, 10254750), (3, 6836500), (4, 5127375), (5, 4101900), (6, 3418250), (10, 2050950), (11, 1864500), (12, 1709125), (15, 1367300), (20, 1025475), (22, 932250), (25, 820380), (30, 683650), (33, 621500), (44, 466125), (50, 410190), (55, 372900), (60, 341825), (66, 310750), (75, 273460), (100, 205095), (110, 186450), (113, 181500), (121, 169500), (125, 164076), (132, 155375), (150, 136730), (165, 124300), (220, 93225), (226, 90750), (242, 84750), (250, 82038), (275, 74580), (300, 68365), (330, 62150), (339, 60500), (363, 56500), (375, 54692), (452, 45375), (484, 42375), (500, 41019), (550, 37290), (565, 36300), (605, 33900), (660, 31075), (678, 30250), (726, 28250), (750, 27346), (825, 24860), (1100, 18645), (1130, 18150), (1210, 16950), (1243, 16500), (1356, 15125), (1375, 14916), (1452, 14125), (1500, 13673), (1650, 12430), (1695, 12100), (1815, 11300), (2260, 9075), (2420, 8475), (2486, 8250), (2750, 7458), (2825, 7260), (3025, 6780), (3300, 6215), (3390, 6050), (3630, 5650), (3729, 5500), (4125, 4972)]