20725200

素因数分解:

$2^4\times 3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:147

約数の個数: 240

約数和(自身を含む): 78417600

約数和(自身を除く): 57692400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 25, 27, 30, 36, 38, 40, 45, 48, 50, 54, 57, 60, 72, 75, 76, 80, 90, 95, 100, 101, 108, 114, 120, 135, 144, 150, 152, 171, 180, 190, 200, 202, 216, 225, 228, 240, 270, 285, 300, 303, 304, 342, 360, 380, 400, 404, 432, 450, 456, 475, 505, 513, 540, 570, 600, 606, 675, 684, 720, 760, 808, 855, 900, 909, 912, 950, 1010, 1026, 1080, 1140, 1200, 1212, 1350, 1368, 1425, 1515, 1520, 1616, 1710, 1800, 1818, 1900, 1919, 2020, 2052, 2160, 2280, 2424, 2525, 2565, 2700, 2727, 2736, 2850, 3030, 3420, 3600, 3636, 3800, 3838, 4040, 4104, 4275, 4545, 4560, 4848, 5050, 5130, 5400, 5454, 5700, 5757, 6060, 6840, 7272, 7575, 7600, 7676, 8080, 8208, 8550, 9090, 9595, 10100, 10260, 10800, 10908, 11400, 11514, 12120, 12825, 13635, 13680, 14544, 15150, 15352, 17100, 17271, 18180, 19190, 20200, 20520, 21816, 22725, 22800, 23028, 24240, 25650, 27270, 28785, 30300, 30704, 34200, 34542, 36360, 38380, 40400, 41040, 43632, 45450, 46056, 47975, 51300, 51813, 54540, 57570, 60600, 68175, 68400, 69084, 72720, 76760, 86355, 90900, 92112, 95950, 102600, 103626, 109080, 115140, 121200, 136350, 138168, 143925, 153520, 172710, 181800, 191900, 205200, 207252, 218160, 230280, 259065, 272700, 276336, 287850, 345420, 363600, 383800, 414504, 431775, 460560, 518130, 545400, 575700, 690840, 767600, 829008, 863550, 1036260, 1090800, 1151400, 1295325, 1381680, 1727100, 2072520, 2302800, 2590650, 3454200, 4145040, 5181300, 6908400, 10362600, 20725200]

約数ペア:

[(1, 20725200), (2, 10362600), (3, 6908400), (4, 5181300), (5, 4145040), (6, 3454200), (8, 2590650), (9, 2302800), (10, 2072520), (12, 1727100), (15, 1381680), (16, 1295325), (18, 1151400), (19, 1090800), (20, 1036260), (24, 863550), (25, 829008), (27, 767600), (30, 690840), (36, 575700), (38, 545400), (40, 518130), (45, 460560), (48, 431775), (50, 414504), (54, 383800), (57, 363600), (60, 345420), (72, 287850), (75, 276336), (76, 272700), (80, 259065), (90, 230280), (95, 218160), (100, 207252), (101, 205200), (108, 191900), (114, 181800), (120, 172710), (135, 153520), (144, 143925), (150, 138168), (152, 136350), (171, 121200), (180, 115140), (190, 109080), (200, 103626), (202, 102600), (216, 95950), (225, 92112), (228, 90900), (240, 86355), (270, 76760), (285, 72720), (300, 69084), (303, 68400), (304, 68175), (342, 60600), (360, 57570), (380, 54540), (400, 51813), (404, 51300), (432, 47975), (450, 46056), (456, 45450), (475, 43632), (505, 41040), (513, 40400), (540, 38380), (570, 36360), (600, 34542), (606, 34200), (675, 30704), (684, 30300), (720, 28785), (760, 27270), (808, 25650), (855, 24240), (900, 23028), (909, 22800), (912, 22725), (950, 21816), (1010, 20520), (1026, 20200), (1080, 19190), (1140, 18180), (1200, 17271), (1212, 17100), (1350, 15352), (1368, 15150), (1425, 14544), (1515, 13680), (1520, 13635), (1616, 12825), (1710, 12120), (1800, 11514), (1818, 11400), (1900, 10908), (1919, 10800), (2020, 10260), (2052, 10100), (2160, 9595), (2280, 9090), (2424, 8550), (2525, 8208), (2565, 8080), (2700, 7676), (2727, 7600), (2736, 7575), (2850, 7272), (3030, 6840), (3420, 6060), (3600, 5757), (3636, 5700), (3800, 5454), (3838, 5400), (4040, 5130), (4104, 5050), (4275, 4848), (4545, 4560)]