20031372

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{461}}^1$

素因数の和:559

約数の個数: 72

約数和(自身を含む): 54486432

約数和(自身を除く): 34455060

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 71, 102, 142, 153, 204, 213, 284, 306, 426, 461, 612, 639, 852, 922, 1207, 1278, 1383, 1844, 2414, 2556, 2766, 3621, 4149, 4828, 5532, 7242, 7837, 8298, 10863, 14484, 15674, 16596, 21726, 23511, 31348, 32731, 43452, 47022, 65462, 70533, 94044, 98193, 130924, 141066, 196386, 282132, 294579, 392772, 556427, 589158, 1112854, 1178316, 1669281, 2225708, 3338562, 5007843, 6677124, 10015686, 20031372]

約数ペア:

[(1, 20031372), (2, 10015686), (3, 6677124), (4, 5007843), (6, 3338562), (9, 2225708), (12, 1669281), (17, 1178316), (18, 1112854), (34, 589158), (36, 556427), (51, 392772), (68, 294579), (71, 282132), (102, 196386), (142, 141066), (153, 130924), (204, 98193), (213, 94044), (284, 70533), (306, 65462), (426, 47022), (461, 43452), (612, 32731), (639, 31348), (852, 23511), (922, 21726), (1207, 16596), (1278, 15674), (1383, 14484), (1844, 10863), (2414, 8298), (2556, 7837), (2766, 7242), (3621, 5532), (4149, 4828)]