20137588425

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{691}}^1$

素因数の和:1144

約数の個数: 144

約数和(自身を含む): 40358934720

約数和(自身を除く): 20221346295

約数列:

[1, 3, 5, 9, 15, 17, 19, 25, 45, 51, 57, 75, 85, 95, 153, 171, 225, 255, 285, 323, 401, 425, 475, 691, 765, 855, 969, 1203, 1275, 1425, 1615, 2005, 2073, 2907, 3455, 3609, 3825, 4275, 4845, 6015, 6219, 6817, 7619, 8075, 10025, 10365, 11747, 13129, 14535, 17275, 18045, 20451, 22857, 24225, 30075, 31095, 34085, 35241, 38095, 39387, 51825, 58735, 61353, 65645, 68571, 72675, 90225, 102255, 105723, 114285, 118161, 129523, 155475, 170425, 176205, 190475, 196935, 223193, 277091, 293675, 306765, 328225, 342855, 388569, 511275, 528615, 571425, 590805, 647615, 669579, 831273, 881025, 984675, 1115965, 1165707, 1385455, 1533825, 1714275, 1942845, 2008737, 2493819, 2643075, 2954025, 3238075, 3347895, 4156365, 4710547, 5264729, 5579825, 5828535, 6927275, 9714225, 10043685, 12469095, 14131641, 15794187, 16739475, 20781825, 23552735, 26323645, 29142675, 42394923, 47382561, 50218425, 62345475, 70658205, 78970935, 89500393, 117763675, 131618225, 211974615, 236912805, 268501179, 353291025, 394854675, 447501965, 805503537, 1059873075, 1184564025, 1342505895, 2237509825, 4027517685, 6712529475, 20137588425]

約数ペア:

[(1, 20137588425), (3, 6712529475), (5, 4027517685), (9, 2237509825), (15, 1342505895), (17, 1184564025), (19, 1059873075), (25, 805503537), (45, 447501965), (51, 394854675), (57, 353291025), (75, 268501179), (85, 236912805), (95, 211974615), (153, 131618225), (171, 117763675), (225, 89500393), (255, 78970935), (285, 70658205), (323, 62345475), (401, 50218425), (425, 47382561), (475, 42394923), (691, 29142675), (765, 26323645), (855, 23552735), (969, 20781825), (1203, 16739475), (1275, 15794187), (1425, 14131641), (1615, 12469095), (2005, 10043685), (2073, 9714225), (2907, 6927275), (3455, 5828535), (3609, 5579825), (3825, 5264729), (4275, 4710547), (4845, 4156365), (6015, 3347895), (6219, 3238075), (6817, 2954025), (7619, 2643075), (8075, 2493819), (10025, 2008737), (10365, 1942845), (11747, 1714275), (13129, 1533825), (14535, 1385455), (17275, 1165707), (18045, 1115965), (20451, 984675), (22857, 881025), (24225, 831273), (30075, 669579), (31095, 647615), (34085, 590805), (35241, 571425), (38095, 528615), (39387, 511275), (51825, 388569), (58735, 342855), (61353, 328225), (65645, 306765), (68571, 293675), (72675, 277091), (90225, 223193), (102255, 196935), (105723, 190475), (114285, 176205), (118161, 170425), (129523, 155475)]