64811988

素因数分解:

$2^2\times 3^5\times {\mathrm{131}}^1\times {\mathrm{509}}^1$

素因数の和:659

約数の個数: 72

約数和(自身を含む): 171531360

約数和(自身を除く): 106719372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 131, 162, 243, 262, 324, 393, 486, 509, 524, 786, 972, 1018, 1179, 1527, 1572, 2036, 2358, 3054, 3537, 4581, 4716, 6108, 7074, 9162, 10611, 13743, 14148, 18324, 21222, 27486, 31833, 41229, 42444, 54972, 63666, 66679, 82458, 123687, 127332, 133358, 164916, 200037, 247374, 266716, 400074, 494748, 600111, 800148, 1200222, 1800333, 2400444, 3600666, 5400999, 7201332, 10801998, 16202997, 21603996, 32405994, 64811988]

約数ペア:

[(1, 64811988), (2, 32405994), (3, 21603996), (4, 16202997), (6, 10801998), (9, 7201332), (12, 5400999), (18, 3600666), (27, 2400444), (36, 1800333), (54, 1200222), (81, 800148), (108, 600111), (131, 494748), (162, 400074), (243, 266716), (262, 247374), (324, 200037), (393, 164916), (486, 133358), (509, 127332), (524, 123687), (786, 82458), (972, 66679), (1018, 63666), (1179, 54972), (1527, 42444), (1572, 41229), (2036, 31833), (2358, 27486), (3054, 21222), (3537, 18324), (4581, 14148), (4716, 13743), (6108, 10611), (7074, 9162)]