138721880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{8521}}^1$

素因数の和:8580

約数の個数: 64

約数和(自身を含む): 349742880

約数和(自身を除く): 211021000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 740, 814, 1480, 1628, 2035, 3256, 4070, 8140, 8521, 16280, 17042, 34084, 42605, 68168, 85210, 93731, 170420, 187462, 315277, 340840, 374924, 468655, 630554, 749848, 937310, 1261108, 1576385, 1874620, 2522216, 3152770, 3468047, 3749240, 6305540, 6936094, 12611080, 13872188, 17340235, 27744376, 34680470, 69360940, 138721880]

約数ペア:

[(1, 138721880), (2, 69360940), (4, 34680470), (5, 27744376), (8, 17340235), (10, 13872188), (11, 12611080), (20, 6936094), (22, 6305540), (37, 3749240), (40, 3468047), (44, 3152770), (55, 2522216), (74, 1874620), (88, 1576385), (110, 1261108), (148, 937310), (185, 749848), (220, 630554), (296, 468655), (370, 374924), (407, 340840), (440, 315277), (740, 187462), (814, 170420), (1480, 93731), (1628, 85210), (2035, 68168), (3256, 42605), (4070, 34084), (8140, 17042), (8521, 16280)]