645489440

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{719}}^1$

素因数の和:946

約数の個数: 96

約数和(自身を含む): 1585059840

約数和(自身を除く): 939570400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 181, 248, 310, 362, 496, 620, 719, 724, 905, 992, 1240, 1438, 1448, 1810, 2480, 2876, 2896, 3595, 3620, 4960, 5611, 5752, 5792, 7190, 7240, 11222, 11504, 14380, 14480, 22289, 22444, 23008, 28055, 28760, 28960, 44578, 44888, 56110, 57520, 89156, 89776, 111445, 112220, 115040, 130139, 178312, 179552, 222890, 224440, 260278, 356624, 445780, 448880, 520556, 650695, 713248, 891560, 897760, 1041112, 1301390, 1783120, 2082224, 2602780, 3566240, 4034309, 4164448, 5205560, 8068618, 10411120, 16137236, 20171545, 20822240, 32274472, 40343090, 64548944, 80686180, 129097888, 161372360, 322744720, 645489440]

約数ペア:

[(1, 645489440), (2, 322744720), (4, 161372360), (5, 129097888), (8, 80686180), (10, 64548944), (16, 40343090), (20, 32274472), (31, 20822240), (32, 20171545), (40, 16137236), (62, 10411120), (80, 8068618), (124, 5205560), (155, 4164448), (160, 4034309), (181, 3566240), (248, 2602780), (310, 2082224), (362, 1783120), (496, 1301390), (620, 1041112), (719, 897760), (724, 891560), (905, 713248), (992, 650695), (1240, 520556), (1438, 448880), (1448, 445780), (1810, 356624), (2480, 260278), (2876, 224440), (2896, 222890), (3595, 179552), (3620, 178312), (4960, 130139), (5611, 115040), (5752, 112220), (5792, 111445), (7190, 89776), (7240, 89156), (11222, 57520), (11504, 56110), (14380, 44888), (14480, 44578), (22289, 28960), (22444, 28760), (23008, 28055)]