64780980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8923}}^1$

素因数の和:8957

約数の個数: 72

約数和(自身を含む): 199397856

約数和(自身を除く): 134616876

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 242, 330, 363, 484, 605, 660, 726, 1210, 1452, 1815, 2420, 3630, 7260, 8923, 17846, 26769, 35692, 44615, 53538, 89230, 98153, 107076, 133845, 178460, 196306, 267690, 294459, 392612, 490765, 535380, 588918, 981530, 1079683, 1177836, 1472295, 1963060, 2159366, 2944590, 3239049, 4318732, 5398415, 5889180, 6478098, 10796830, 12956196, 16195245, 21593660, 32390490, 64780980]

約数ペア:

[(1, 64780980), (2, 32390490), (3, 21593660), (4, 16195245), (5, 12956196), (6, 10796830), (10, 6478098), (11, 5889180), (12, 5398415), (15, 4318732), (20, 3239049), (22, 2944590), (30, 2159366), (33, 1963060), (44, 1472295), (55, 1177836), (60, 1079683), (66, 981530), (110, 588918), (121, 535380), (132, 490765), (165, 392612), (220, 294459), (242, 267690), (330, 196306), (363, 178460), (484, 133845), (605, 107076), (660, 98153), (726, 89230), (1210, 53538), (1452, 44615), (1815, 35692), (2420, 26769), (3630, 17846), (7260, 8923)]