25515860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{809}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 57153600

約数和(自身を除く): 31637740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 83, 95, 166, 190, 332, 380, 415, 809, 830, 1577, 1618, 1660, 3154, 3236, 4045, 6308, 7885, 8090, 15371, 15770, 16180, 30742, 31540, 61484, 67147, 76855, 134294, 153710, 268588, 307420, 335735, 671470, 1275793, 1342940, 2551586, 5103172, 6378965, 12757930, 25515860]

約数ペア:

[(1, 25515860), (2, 12757930), (4, 6378965), (5, 5103172), (10, 2551586), (19, 1342940), (20, 1275793), (38, 671470), (76, 335735), (83, 307420), (95, 268588), (166, 153710), (190, 134294), (332, 76855), (380, 67147), (415, 61484), (809, 31540), (830, 30742), (1577, 16180), (1618, 15770), (1660, 15371), (3154, 8090), (3236, 7885), (4045, 6308)]