77912920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3307}}^1$

素因数の和:3368

約数の個数: 64

約数和(自身を含む): 190540800

約数和(自身を除く): 112627880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 589, 620, 760, 1178, 1240, 2356, 2945, 3307, 4712, 5890, 6614, 11780, 13228, 16535, 23560, 26456, 33070, 62833, 66140, 102517, 125666, 132280, 205034, 251332, 314165, 410068, 502664, 512585, 628330, 820136, 1025170, 1256660, 1947823, 2050340, 2513320, 3895646, 4100680, 7791292, 9739115, 15582584, 19478230, 38956460, 77912920]

約数ペア:

[(1, 77912920), (2, 38956460), (4, 19478230), (5, 15582584), (8, 9739115), (10, 7791292), (19, 4100680), (20, 3895646), (31, 2513320), (38, 2050340), (40, 1947823), (62, 1256660), (76, 1025170), (95, 820136), (124, 628330), (152, 512585), (155, 502664), (190, 410068), (248, 314165), (310, 251332), (380, 205034), (589, 132280), (620, 125666), (760, 102517), (1178, 66140), (1240, 62833), (2356, 33070), (2945, 26456), (3307, 23560), (4712, 16535), (5890, 13228), (6614, 11780)]