210938780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{12109}}^1$

素因数の和:12198

約数の個数: 48

約数和(自身を含む): 484206240

約数和(自身を除く): 273267460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 3484, 4355, 8710, 12109, 17420, 24218, 48436, 60545, 121090, 157417, 242180, 314834, 629668, 787085, 811303, 1574170, 1622606, 3148340, 3245212, 4056515, 8113030, 10546939, 16226060, 21093878, 42187756, 52734695, 105469390, 210938780]

約数ペア:

[(1, 210938780), (2, 105469390), (4, 52734695), (5, 42187756), (10, 21093878), (13, 16226060), (20, 10546939), (26, 8113030), (52, 4056515), (65, 3245212), (67, 3148340), (130, 1622606), (134, 1574170), (260, 811303), (268, 787085), (335, 629668), (670, 314834), (871, 242180), (1340, 157417), (1742, 121090), (3484, 60545), (4355, 48436), (8710, 24218), (12109, 17420)]