2809120

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:293

約数の個数: 48

約数和(自身を含む): 6742008

約数和(自身を除く): 3932888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 181, 194, 362, 388, 485, 724, 776, 905, 970, 1448, 1552, 1810, 1940, 2896, 3104, 3620, 3880, 5792, 7240, 7760, 14480, 15520, 17557, 28960, 35114, 70228, 87785, 140456, 175570, 280912, 351140, 561824, 702280, 1404560, 2809120]

約数ペア:

[(1, 2809120), (2, 1404560), (4, 702280), (5, 561824), (8, 351140), (10, 280912), (16, 175570), (20, 140456), (32, 87785), (40, 70228), (80, 35114), (97, 28960), (160, 17557), (181, 15520), (194, 14480), (362, 7760), (388, 7240), (485, 5792), (724, 3880), (776, 3620), (905, 3104), (970, 2896), (1448, 1940), (1552, 1810)]