27988723980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{312863}}^1$

素因数の和:312956

約数の個数: 144

約数和(自身を含む): 98394476544

約数和(自身を除く): 70405752564

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 71, 84, 90, 105, 126, 140, 142, 180, 210, 213, 252, 284, 315, 355, 420, 426, 497, 630, 639, 710, 852, 994, 1065, 1260, 1278, 1420, 1491, 1988, 2130, 2485, 2556, 2982, 3195, 4260, 4473, 4970, 5964, 6390, 7455, 8946, 9940, 12780, 14910, 17892, 22365, 29820, 44730, 89460, 312863, 625726, 938589, 1251452, 1564315, 1877178, 2190041, 2815767, 3128630, 3754356, 4380082, 4692945, 5631534, 6257260, 6570123, 8760164, 9385890, 10950205, 11263068, 13140246, 14078835, 18771780, 19710369, 21900410, 22213273, 26280492, 28157670, 32850615, 39420738, 43800820, 44426546, 56315340, 65701230, 66639819, 78841476, 88853092, 98551845, 111066365, 131402460, 133279638, 155492911, 197103690, 199919457, 222132730, 266559276, 310985822, 333199095, 394207380, 399838914, 444265460, 466478733, 621971644, 666398190, 777464555, 799677828, 932957466, 999597285, 1332796380, 1399436199, 1554929110, 1865914932, 1999194570, 2332393665, 2798872398, 3109858220, 3998389140, 4664787330, 5597744796, 6997180995, 9329574660, 13994361990, 27988723980]

約数ペア:

[(1, 27988723980), (2, 13994361990), (3, 9329574660), (4, 6997180995), (5, 5597744796), (6, 4664787330), (7, 3998389140), (9, 3109858220), (10, 2798872398), (12, 2332393665), (14, 1999194570), (15, 1865914932), (18, 1554929110), (20, 1399436199), (21, 1332796380), (28, 999597285), (30, 932957466), (35, 799677828), (36, 777464555), (42, 666398190), (45, 621971644), (60, 466478733), (63, 444265460), (70, 399838914), (71, 394207380), (84, 333199095), (90, 310985822), (105, 266559276), (126, 222132730), (140, 199919457), (142, 197103690), (180, 155492911), (210, 133279638), (213, 131402460), (252, 111066365), (284, 98551845), (315, 88853092), (355, 78841476), (420, 66639819), (426, 65701230), (497, 56315340), (630, 44426546), (639, 43800820), (710, 39420738), (852, 32850615), (994, 28157670), (1065, 26280492), (1260, 22213273), (1278, 21900410), (1420, 19710369), (1491, 18771780), (1988, 14078835), (2130, 13140246), (2485, 11263068), (2556, 10950205), (2982, 9385890), (3195, 8760164), (4260, 6570123), (4473, 6257260), (4970, 5631534), (5964, 4692945), (6390, 4380082), (7455, 3754356), (8946, 3128630), (9940, 2815767), (12780, 2190041), (14910, 1877178), (17892, 1564315), (22365, 1251452), (29820, 938589), (44730, 625726), (89460, 312863)]