73939640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{359}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 176256000

約数和(自身を除く): 102316360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 271, 359, 380, 542, 718, 760, 1084, 1355, 1436, 1795, 2168, 2710, 2872, 3590, 5149, 5420, 6821, 7180, 10298, 10840, 13642, 14360, 20596, 25745, 27284, 34105, 41192, 51490, 54568, 68210, 97289, 102980, 136420, 194578, 205960, 272840, 389156, 486445, 778312, 972890, 1848491, 1945780, 3696982, 3891560, 7393964, 9242455, 14787928, 18484910, 36969820, 73939640]

約数ペア:

[(1, 73939640), (2, 36969820), (4, 18484910), (5, 14787928), (8, 9242455), (10, 7393964), (19, 3891560), (20, 3696982), (38, 1945780), (40, 1848491), (76, 972890), (95, 778312), (152, 486445), (190, 389156), (271, 272840), (359, 205960), (380, 194578), (542, 136420), (718, 102980), (760, 97289), (1084, 68210), (1355, 54568), (1436, 51490), (1795, 41192), (2168, 34105), (2710, 27284), (2872, 25745), (3590, 20596), (5149, 14360), (5420, 13642), (6821, 10840), (7180, 10298)]