20329416

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^2\times {\mathrm{977}}^1$

素因数の和:1023

約数の個数: 72

約数和(自身を含む): 58547970

約数和(自身を除く): 38218554

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 68, 72, 102, 136, 153, 204, 289, 306, 408, 578, 612, 867, 977, 1156, 1224, 1734, 1954, 2312, 2601, 2931, 3468, 3908, 5202, 5862, 6936, 7816, 8793, 10404, 11724, 16609, 17586, 20808, 23448, 33218, 35172, 49827, 66436, 70344, 99654, 132872, 149481, 199308, 282353, 298962, 398616, 564706, 597924, 847059, 1129412, 1195848, 1694118, 2258824, 2541177, 3388236, 5082354, 6776472, 10164708, 20329416]

約数ペア:

[(1, 20329416), (2, 10164708), (3, 6776472), (4, 5082354), (6, 3388236), (8, 2541177), (9, 2258824), (12, 1694118), (17, 1195848), (18, 1129412), (24, 847059), (34, 597924), (36, 564706), (51, 398616), (68, 298962), (72, 282353), (102, 199308), (136, 149481), (153, 132872), (204, 99654), (289, 70344), (306, 66436), (408, 49827), (578, 35172), (612, 33218), (867, 23448), (977, 20808), (1156, 17586), (1224, 16609), (1734, 11724), (1954, 10404), (2312, 8793), (2601, 7816), (2931, 6936), (3468, 5862), (3908, 5202)]