17281220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 41179992

約数和(自身を除く): 23898772

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 121, 148, 185, 193, 220, 242, 370, 386, 407, 484, 605, 740, 772, 814, 965, 1210, 1628, 1930, 2035, 2123, 2420, 3860, 4070, 4246, 4477, 7141, 8140, 8492, 8954, 10615, 14282, 17908, 21230, 22385, 23353, 28564, 35705, 42460, 44770, 46706, 71410, 78551, 89540, 93412, 116765, 142820, 157102, 233530, 314204, 392755, 467060, 785510, 864061, 1571020, 1728122, 3456244, 4320305, 8640610, 17281220]

約数ペア:

[(1, 17281220), (2, 8640610), (4, 4320305), (5, 3456244), (10, 1728122), (11, 1571020), (20, 864061), (22, 785510), (37, 467060), (44, 392755), (55, 314204), (74, 233530), (110, 157102), (121, 142820), (148, 116765), (185, 93412), (193, 89540), (220, 78551), (242, 71410), (370, 46706), (386, 44770), (407, 42460), (484, 35705), (605, 28564), (740, 23353), (772, 22385), (814, 21230), (965, 17908), (1210, 14282), (1628, 10615), (1930, 8954), (2035, 8492), (2123, 8140), (2420, 7141), (3860, 4477), (4070, 4246)]