15661918205

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{17681}}^1$

素因数の和:17905

約数の個数: 32

約数和(自身を含む): 20051388000

約数和(自身を除く): 4389469795

約数列:

[1, 5, 29, 41, 145, 149, 205, 745, 1189, 4321, 5945, 6109, 17681, 21605, 30545, 88405, 177161, 512749, 724921, 885805, 2563745, 2634469, 3624605, 13172345, 21022709, 76399601, 105113545, 108013229, 381998005, 540066145, 3132383641, 15661918205]

約数ペア:

[(1, 15661918205), (5, 3132383641), (29, 540066145), (41, 381998005), (145, 108013229), (149, 105113545), (205, 76399601), (745, 21022709), (1189, 13172345), (4321, 3624605), (5945, 2634469), (6109, 2563745), (17681, 885805), (21605, 724921), (30545, 512749), (88405, 177161)]