20344380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{821}}^1$

素因数の和:899

約数の個数: 96

約数和(自身を含む): 66286080

約数和(自身を除く): 45941700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 59, 60, 70, 84, 105, 118, 140, 177, 210, 236, 295, 354, 413, 420, 590, 708, 821, 826, 885, 1180, 1239, 1642, 1652, 1770, 2065, 2463, 2478, 3284, 3540, 4105, 4130, 4926, 4956, 5747, 6195, 8210, 8260, 9852, 11494, 12315, 12390, 16420, 17241, 22988, 24630, 24780, 28735, 34482, 48439, 49260, 57470, 68964, 86205, 96878, 114940, 145317, 172410, 193756, 242195, 290634, 339073, 344820, 484390, 581268, 678146, 726585, 968780, 1017219, 1356292, 1453170, 1695365, 2034438, 2906340, 3390730, 4068876, 5086095, 6781460, 10172190, 20344380]

約数ペア:

[(1, 20344380), (2, 10172190), (3, 6781460), (4, 5086095), (5, 4068876), (6, 3390730), (7, 2906340), (10, 2034438), (12, 1695365), (14, 1453170), (15, 1356292), (20, 1017219), (21, 968780), (28, 726585), (30, 678146), (35, 581268), (42, 484390), (59, 344820), (60, 339073), (70, 290634), (84, 242195), (105, 193756), (118, 172410), (140, 145317), (177, 114940), (210, 96878), (236, 86205), (295, 68964), (354, 57470), (413, 49260), (420, 48439), (590, 34482), (708, 28735), (821, 24780), (826, 24630), (885, 22988), (1180, 17241), (1239, 16420), (1642, 12390), (1652, 12315), (1770, 11494), (2065, 9852), (2463, 8260), (2478, 8210), (3284, 6195), (3540, 5747), (4105, 4956), (4130, 4926)]