20597140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{809}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 46267200

約数和(自身を除く): 25670060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 670, 809, 1273, 1340, 1618, 2546, 3236, 4045, 5092, 6365, 8090, 12730, 15371, 16180, 25460, 30742, 54203, 61484, 76855, 108406, 153710, 216812, 271015, 307420, 542030, 1029857, 1084060, 2059714, 4119428, 5149285, 10298570, 20597140]

約数ペア:

[(1, 20597140), (2, 10298570), (4, 5149285), (5, 4119428), (10, 2059714), (19, 1084060), (20, 1029857), (38, 542030), (67, 307420), (76, 271015), (95, 216812), (134, 153710), (190, 108406), (268, 76855), (335, 61484), (380, 54203), (670, 30742), (809, 25460), (1273, 16180), (1340, 15371), (1618, 12730), (2546, 8090), (3236, 6365), (4045, 5092)]