20702977280

素因数分解:

$2^8\times 5^1\times {\mathrm{59}}^1\times {\mathrm{274139}}^1$

素因数の和:274219

約数の個数: 72

約数和(自身を含む): 50430794400

約数和(自身を除く): 29727817120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 64, 80, 118, 128, 160, 236, 256, 295, 320, 472, 590, 640, 944, 1180, 1280, 1888, 2360, 3776, 4720, 7552, 9440, 15104, 18880, 37760, 75520, 274139, 548278, 1096556, 1370695, 2193112, 2741390, 4386224, 5482780, 8772448, 10965560, 16174201, 17544896, 21931120, 32348402, 35089792, 43862240, 64696804, 70179584, 80871005, 87724480, 129393608, 161742010, 175448960, 258787216, 323484020, 350897920, 517574432, 646968040, 1035148864, 1293936080, 2070297728, 2587872160, 4140595456, 5175744320, 10351488640, 20702977280]

約数ペア:

[(1, 20702977280), (2, 10351488640), (4, 5175744320), (5, 4140595456), (8, 2587872160), (10, 2070297728), (16, 1293936080), (20, 1035148864), (32, 646968040), (40, 517574432), (59, 350897920), (64, 323484020), (80, 258787216), (118, 175448960), (128, 161742010), (160, 129393608), (236, 87724480), (256, 80871005), (295, 70179584), (320, 64696804), (472, 43862240), (590, 35089792), (640, 32348402), (944, 21931120), (1180, 17544896), (1280, 16174201), (1888, 10965560), (2360, 8772448), (3776, 5482780), (4720, 4386224), (7552, 2741390), (9440, 2193112), (15104, 1370695), (18880, 1096556), (37760, 548278), (75520, 274139)]